-Cleaned up routing engine code. Removed thread locking that was put in place to support parallel bidirectional search (backward and forward searches running on their own threads). Since that algorithm turned out to perform worse than the single-thread version, I removed the code and extra locks on the database. The result is slightly improved query speed and less locking overhead on the DB. The routing engine code has also been more condensed and is a little easier to follow. The most-frequently called functions have also been streamlined and produce fewer new objects.
- Routing engine will now initialize start and end road links and begin loading parts of the network right after a location is clicked on a background thread. Result is slightly faster queries as the algorithm will usually be primed with start and end location (on the actual road network) before calculate route is clicked. The routing engine must first resolve a clicked coordinate location to the closest traversable street, which can take up to 0.5 - 1s (depending on the amount cached in memory). Running this on background threads makes queries more efficient.
- Tile manager now deletes tiles furthest from the current map view when the cache limit is reached. This eliminates weird flickering where tiles are removed from a previous location that is revisted (and the tiles re-downloaded and rendered).
- Small changes to main map invalidation. Zoom and scrolling smoother.
- Because I'm still making changes to the database and object design, I will include a data file with each version of the project. This is because any changes render previous data files unusable as old versions of the database won't be able to deserialize the new objects. When the data file parser is completed I will separate project files and data files and maintain version control and compatibility. Because even minor changes to the DB will make new files incompatible, I will only start separating them once I feel the DB design is reasonably good. As I add features to the DB I have to account for missing or erroneous map data so that both the DB and dependent programs know how to handle them.

- Fixed the calculation of the turn costs. I had mixed up some of the heading calculations (more complicated
to figure out for the reverse iteration of the algorithm) which caused the router to think straight connections
between links were in fact u-turns in some cases (and prohibiting them). This produced some weird routing results that should
be fixed now.

- Added a few new objects (DistanceSpan struct for all distance units calculations, similar to TimeSpan), working
on RenderingCollection class to handle all rendered objects.

-Some other bugs in the RoutingEngine fixed, small performance improvements with cost calculation code optimization.

-Hope to experiment with driving directions in the next month or two when I find the time.

From version 02-07-12 and on, there are two files that are needed for this project - the VS project folder - the Oregon.dbs sample data file. The .dbs file should be located in the /bin folder of the VS project to load properly. If the program is run without a data file, the application will give a warning on startup indicating that routing and spatial queries are disabled. The map can still be scrolled and will download OSM or MapQuest tiles for rendering. An application for processing OSM XML data is in the works so that any OSM file can be parsed and used for routing and spatial queries. For now the sample data file is available to demonstrate the routing and spatial query capabilities of the class library and application.

Added "Bonne" projection.
Load OziExplorer maps: Automatic conversion of "Pulkovo 1942 (1)" and "Pulkovo 1942 (2)" datum.
Receive OkMap remote data: Fixed a bug that caused a freezing of the program.
Preferences - Receive OkMap: Removed "Max connections" field.

Added collapsible list folders and sub-lists for improved organization.
Added shaping point support for zumo devices like done in MapSource.
Added explicit support for shaping points. These will be transferred to supporting devices.
Added support for transfer of waypoint categories on supporting devices. These are displayed in BaseCamp as lists.
Added more activity profiles, with improved activity routing on supported maps.
Added specific avoidances for various road classes, removed the road selection slider.
Added custom activity profiles.
Added keyboard short-cuts for editing tools (divide, insert, erase).
Added a tools menu for easier discovery of tool keyboard shortcuts.
Changed to make GPX files on a memory card directly editable.
Changed to read all GPX files on a memory card, similar to how devices behave.
Improved graphing of track data.
Improved graphing when multiple routes or tracks are selected.
Improved layout of geotagged photo, waypoint, route, and track properties.
Added additional statistics to route and track properties.
Added 'Center on map' check-box on route and track dialogs.
Added an easier way to add waypoints to routes (Insert Waypoint button).
Added additional data fields to waypoints (such as address and phone number).
Added display and updating of date last modified for waypoints.
Added display of lists that contain this data item to properties.
Added receiving geocache visits from devices.
Added logging geocache visits on OpenCaching.com.
Added printing of geocaches.
Added alternate notification mechanism (less annoying pop-ups).
Added display settings to adjust width of routes and tracks.
Added support for importing waypoints and tracks from KML/KMZ files.
Added suggested file name when exporting (so it isn't always 'untitled').
Added more map details for higher detail setting.
Added data filters to map view.
Added preserving the dialog size for each data type.
Added option to reset track's altitude to map data.
Added functionality to remember display feature settings per profile.
Changed 'Remove List and Contents' to 'Remove list and unique contents'.
Added Shift-Delete short-cut for 'Remove list and unique contents'.
Added a confirmation dialog for 'Remove list and unique contents'.
Added hiding of Activity profiles.
Added creating OpenCaches from waypoints.
Added calculating ascent and descent for direct routes.
Added indication of data filter visibility state on the data list.
Added recalculation of more than 1 route at a time.
Improved printing of routes and tracks.
Change to prevent property dialogs becoming lost off screen after screen resolution changes.
Fixed issues with sending routes to the zumo.
Update waypoint references to new map data when recalculating routes.
Fixed any profiles from BaseCamp 3.2 that have invalid routing preferences (ie invalid vehicle types and incorrect avoidances).
Fixed list in-place rename requiring pressing enter to complete the edit.
Fixed the 'Reset Headers' context menu being displayed after renaming an item.
Fixed issue writing out altitude when exporting to the GDB file format.
Fixed track filtering 'automatic mode' for tracks with no time information.
Fixed elevation profile labels for Windows XP (no longer invisible).
Fixed issue when duplicating a route. BaseCamp will now also duplicate the waypoints in that route.