Fixed some string format specifiers (long int vs int)
Only draw polygons with more than 1 point. wxWidgets 2.9.4 doesn't seem to like it if there's only 1 or less points (assertion error).
Fixes compile errors
Fixes toolbar "grabber" not showing
Enables tooltips and fixes tooltip related crash on mac
Fix null pointer exception on double clicking waypoint (wxWidgets 2.9.4, Mac OS X 10.8.3)
Fix Windows build errors from refactoring
Merge pull request #47 from kheyse/miscelaneous_improvements

Miscelaneous, mainly wx2.9 and Mac build related, improvements
Merge pull request #48 from kheyse/tooltips_on_mac

Enable tooltips and fix tooltip related crash on mac