Added : Pclzip Class

This class is used to upload zip files. Templates uploading uses this
class
Fixed : set_the_template method

The issue where template's template.php file was being included is fixed
Registered : Photos object

Photos class has also been registered. Also added get method to fetch
photo details
Added : New Subscriptions

New subscriptions has been added. These are still in testing/beta mode.
A new function called 'cb_sql_table' has been added in 'functions.php',
read it's documentation for better understanding