Add jQuery Simple DateTimePicker library
jQuery Simple DateTimePicker css file
Temporary file to test Classes and objects created
Create Database class to help interact with MySQL

Also, it should help to swap the underlying database without much trouble if we need to do so later.
Scheduler Class to load sms from Database and schedule them to be sent
Remove reference to hour and minute in DB class sinc we're no longer sending it via POST
Simplify database structure by removing day, month, year, hour, minute, second columns. Should just save as TIMESTAMP and parse it in code
Remove hour and minute from ajax form submission since we're just sending one datetime field instead.