New control types

• migrated to Bootstrap/Bootswatch 3.0.3
• migrated to Bootstrap Datetimepicker - https://github.com/smalot/bootstrap-datetimepicker in place of jQuery UI Datepicker
• new controls: date, time, datetime, year, radio and static select - http://simov.github.io/express-admin-site/#example-column
• new controls example inside the examples repository
• example database for PostgreSQL inside the examples repository - https://github.com/simov/express-admin-examples/
• fixed quotes not being escaped inside string data types