Added some keys to specific buttons

git-svn-id: https://dotspatial.svn.codeplex.com/svn@72379 142e9c35-602f-4880-9f37-ec48a24daa6a
Default Services sorted

git-svn-id: https://dotspatial.svn.codeplex.com/svn@72399 142e9c35-602f-4880-9f37-ec48a24daa6a
added gitignore
added readme
Merge branch 'master' of github.com:sdrmaps/dot-spatial