Merge pull request #8 from mnohai-mdsol/master

Added additional keywords.
Merge pull request #10 from mnohai-mdsol/master

Added "In" and update "Rem" to use proper case.
Merge pull request #11 from mnohai-mdsol/master

Fixed issue with Rem after latest change. Added keyword "Step" as used in For loops.
Added sublime build support (via cscript and wscript).
Ignore python cache files.
Simple nose tests to check the validity of VBScript.tmLanguage and VBScript.sublime-build files.
General clean-up, expanded installation instruction section, and added travis-ci build status.
Updated screenshots.
Merge branch 'master' of github.com:SublimeText/VBScript