fix(autocomplete): Escape regex metachars when highlighting

Escape regex metacharacters when highlighting an autocomplete match so
the autocomplete directive doesn't crash when the search query contains
such characters.

Closes #124
chore(build): Update build files [skip ci]
chore(Gruntfile): Add build task

Add build task to generate all build files and commit them to Git
doc(tagsInput): Fix module name and allowedTagsPattern default value [skip ci]