fix(tagsInput): Fix input-change event name

There is a typo in the tagsInput directive which is causing the
input-change event not to be called after a tag is added. The correct
event name is 'input-change' and not 'input-changed'.

Closes #57.
chore(release): Version bump

Version bumped to 1.1.1
chore(release): Remove build folder from Git

Remove build folder from the Git index since it doesn't make much sense
to keep the generated files under version control.
chore(git): Add build folder to .gitignore
chore(grunt): Automate the release process
chore(release): Release v1.1.1