added lib ngTagsInput to the app
include ngTagsInput without NPM from forked instance of the library
added comment in ngTagsInput
refactored write view to utilize ngTagsInclude in preperation for auto complete feature
fix jshint in write.js
updated tests for write ctrl
nicer line break of addresses in write view
Bind email addresses in pgp keychain to autocomplete
Fix bugs when removing tags

Fix CC, BCC click lag
Add test for lookupAddressBook
Use pointer cursor when hovering over tags
Merge pull request #121 from whiteout-io/dev/WO-285

Dev/wo 285