Quick hack to support 2.5D geometry types

http://www.gdal.org/ogr/ogr__core_8h.html#a800236a0d460ef66e687b7b65610f12a
Merge branch 'master' of github.com:Toblerity/Fiona
Merge ../Fiona
Merge pull request #24 from sgillies/master

Module of PROJ.4 CRS utility functions
Merge branch 'master' of ../Fiona
Merge pull request #25 from sgillies/master

Record validation method
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Update README.rst

Add windows installation notes.
Update README.rst
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of github.com:Toblerity/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona
Merge branch 'master' of /Users/seang/code/Fiona