Refactoring: moved function 'x_malloc' to reduce dependencies.
Refactoring: encapsulation and handling of global variables regarding NMEA log window into the class NMEALogWindow.
Removed import of unused global variables in datastream.cpp
NMEALogWindow is now a real singleton.
TTYWindow no longer operates on global variables. Size and Position are being handled fewer times, still consistent. Reduction of dependencies.
internationalization fixes
Correct ComboBox display ( Do not change when updating tracking control )
Suppress warning when compiling with wxWidgets 2.8
Correct crash when opening file with only one date
Revert "Correct crash when opening file with only one date"

This reverts commit b3aefebc854c02fceaf7d694e09295d6c5f781c6.
Correct crash when opening file with only one date
Merge pull request #50 from mariokonrad/refactor

Refactoring: use of global variables reduced for NMEA log/debug window, dependencies reduced
Correct initial visibility of layer waypoints.
Correct duplicate layer waypoint loading to RouteManagerDialog list.
Correct potential pan key runaway on long SENC creation.
Improve quilt logic regarding ENC cell inclusion criteria (FS#???)
Correct Mac Toolbar visibility on Docking (FS#976)
Correct dialog return logic.
Improve ENC error checking in non-GL mode.
Convert SingleInstance Checker to Windows only.