Patch to fix several Py3 issues with wx.lib.masked.

- string manipulation (string.* methods)
- type instance checking (types.StringType)
- unicode vs str comparisions
- string decoding not needed in py3k
- static methods: Validator_IsSilent()
- remove has_key and fixed + with list(dict.keys())

Closes #15163

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73857 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Patch to fix Py3 issue with wx.lib.mixins.listctrl.

- type instance checking (types.StringType)
- unicode vs str comparisions

Closes #15164

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73858 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Patch updating FloatCanvas for Phoenix

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73859 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775