remove the unused appUrl parameter in ApplicationContext constructor
(chore) code cleanup / re-ordering
Merge pull request #18 from omsmith/removeAppUrl

remove the unused appUrl parameter in ApplicationContext constructor
Merge pull request #19 from omsmith/createAuthenticatedUrlCleanup

(chore) code cleanup / re-ordering
code style. better regex-escape regex. jsdoc updates.
host should include protocol. show in tests, jsdoc, and sample
add code style config files for jshint and jscs