Replaced FileDialog OPEN and SAVE constants with newer FD_OPEN and
FD_SAVE
wx.Colour usage changes to future proof for Phoenix:

Replaced usage of wx.Color with wx.Colour as the first no longer exists
and is only an alias for the second in 2.8

Replaced Colour.Get() with Colour.Get(False) as 
the default value for includeAlpha will be changing from False to True
after 2.8
Replaced usage of Rect.Inside with Rect.Contains as the first is
deprecated in 2.8 and does not exist in Phoenix
Merge branch 'i005a_wxpython_usage'
Replaced the wx.OPEN alias with wx.FD_OPEN constant as the first does
not exist in Phoenix