Dev/wo 285

Already done:
Refactored write view to utilize ngTagsInclude in preperation for auto complete feature.

Todo:
Implement `lookupAddressBook()` function in write.js to lookup addresses in user address book.

Attention:
Had to include a fork of the library ngTagsInput (https://github.com/nanlabs/ngTagsInput) because of an otherwise missing feature to style each tag individually.