added handbrake directory flag
handbrake flag error
updated documentation
reformatted handbrake error print statement
moved error checking to more appropriate place for MP4
cleaned up flagging
fixed bugs
fixed bug

I had moved error reporting into "convertToMp4", but didn't pass
courseName
mp4 flag parsing error resolved
added --outputPath flag to specify output location
fixed readme bug
fixed handbrake location flag

handbrake was not being run when there was a space in the path.
Added support for 2 Factor Auth
Added link to Gist
Merge pull request #13 from djoeman84/master

Added 2-Factor Authentication, improved efficiency, added support for different output path