New loginLDAP of authenticate.ldap use URI instead of Host+Port

Bump version
new loginLDAP: LDAPConfig usernameFilter is the query filter
loginLDAP now returns at most a single entry, adapt identifierModifier
Implement credsExtra based on LDAP attributes
Fix url clash with other Auth: rename dispatched page
Refresh page design according to current Yesod Forms standard

Based on yesod-auth-1.3.0.4 form table
Clean module, use modern quasiquoter notation
Add bootstrap class to button
Add gitignore for binaries and sandbox
Add dependency: shakespeare
Merge pull request #4 from axel-angel/master

Improve and cleanup