Fix pagination issue in history
Added filetype check for settings import
Switch to edd_get_file_extension()
Merge pull request #1608 from ghost1227/bugs/1526

Added filetype check for settings import
use edd_get_payment_use_id(). #1599
Fix syntax error
esc_url() and simplification of add/remove_query_arg()
Add check for apache on htaccess notification
Merge pull request #1611 from ghost1227/bugs/1593

Add check for apache on htaccess notification
Cleanup redundant remove_query_args()
Merge pull request #1607 from ghost1227/bugs/1572

Fix pagination issue in history