Wrote preliminary help modal acceptance tests
Fixed wording to better reflect BDD specs
Made filling field a bit safer
Tightened up wording
Stylistic change and factored out method to common
Added the full range of help modal options

Fixed pylint violations
Merge pull request #710 from edx/jonahstanley/help-acceptance-test

Jonahstanley/help acceptance test
Merge branch 'master' into dave/block_forums_for_unenrolled