silvercity: add new scintilla lexlib file

(integrated from komodo (trunk) change 80515 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk/src/silvercity@13103 b87d16e7-d29f-4ee1-b5ec-817d645d335f
silvercity: update python keywords, add python 3 keywords

(integrated from komodo (trunk) change 81377 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk/src/silvercity@13415 b87d16e7-d29f-4ee1-b5ec-817d645d335f
Added .gitignore