-Small comment fix
- Introduced the wxEVT_AUI_PANE_CREATE_TAB
- Make wxAUI behave almost like current one regarding tab creation
- Allow to specify a terget pane in wxAuiManagerEvent
- Set the covered pane as the Target Pane in the wxEVT_AUI_PANE_CREATE_TAB event
Merge pull request #30 from lpoujoulat/wxAuiExperimentalFixes

wxAUI compatibility fixes