make adding a new book work again
Merge pull request #9 from wvengen/feature/fix-add-book

make adding a new book work again
allow to serve cover images by Google
link book author to search
make phone number and sms optional
Merge pull request #13 from wvengen/feature/remote-cover

allow to serve cover images by Google
Merge pull request #16 from wvengen/feature/optional-sms

make phone number and sms optional
Merge pull request #15 from wvengen/feature/link-author

link book author to search
Hide empty LCC fields.
Add tag editor with autocomplete.
Allow easier debugging during development.

Conflicts:
	Gemfile
	Gemfile.lock
Merge pull request #14 from wvengen/feature/fix-show-field

fix showing empty lcc field
Merge pull request #17 from wvengen/feature/dev-deps

Allow easier debugging during development.
Merge pull request #12 from wvengen/feature/tagsinput

add tag editor with autocomplete
Refactor mailers.

Conflicts:
	app/controllers/account_controller.rb
Redesign and reword emails.

Includes the use of premailer to send both html and text parts.

Conflicts:
	Gemfile.lock
	config/routes.rb
Wrap signup in transaction.
Merge pull request #18 from wvengen/feature/pretty-emails-upstream

Refactor and reword emails.
Allow login with login or email.
Merge pull request #20 from wvengen/feature/login-email-too

Allow login with login or email.