Merge pull request #41 from lpoujoulat/wxAuiExperimentalFixes

Fix for issue #40: pages of wxAuiNotebook are not always tabs as they should
Merge pull request #44 from lpoujoulat/wxAuiExperimentalFixes

Fixes for issues #42 and #43
Fix compile error with changed method names.
Found and fixed a crash when dropping from notebook outside of application on kde (gtk build).
Strip border styles and add wxBORDER_NONE|wxWANTS_CHARS to wxAuiNotebook - to make it consistent with how the old control worked.
Fix incorrect virtual overload of GetBestTabCtrlSize - it seems all the ones in tabart.h got updated at some point but tabartgtk.h was missed.

tab->space correction(s).
Merge pull request #45 from lpoujoulat/wxAuiExperimentalFixes

Fixed compilation on GTK
Merge pull request #47 from mjmacleod/aui-dynamic-notebook

Crash when dropping from notebook outside the application window
Merge pull request #52 from mjmacleod/aui-dynamic-notebook

Fix incorrect virtual overload of GetBestTabCtrlSize
Suggest we use this as the base for a new demo - unless someone else has a better one to use?

auidemo.cpp.old to be kept around for now for easy regression testing but to be dumped pre-merge.
Merge pull request #53 from mjmacleod/aui-dynamic-notebook

Suggest we use this as the base for a new demo - unless someone else has...
Fix various problems with drop hint calculation. This should clear up most of the more obvious issues.
Merge pull request #54 from mjmacleod/aui-dynamic-notebook

Fix various problems with drop hint calculation.
Introduce a style flag in the manager to simplify enabling pane stacking
Merge branch 'aui-dynamic-notebook' of https://github.com/nhold/wxWidgets into wxAuiExperimentalFixes
Fixed normal panes content not showing back when the pane is unhidde and the pane might have been part of a notebook, but not allowed so.
Simplified code by removing internal IsNotebookPane()
Introduced wxAUI_MGR_NB_ALLOW_NOTEBOOKS manager style flag to simply allow pane stacking
Forced wxAUI_MGR_NB_ALLOW_NOTEBOOKS in wxAuiNotebook