* Added ISBN validation class (fale/isbn)
* Setup /post and /mybooks/book to validate isbn input
* Updated error printing for search page
* Changed paths for require for ISBN include
* Setup search page to use both types of isbn when search is initiated * Use both split search and single string search (in that order) to check for extra results if none with the first method
* Resolved update-remove-add button for /mybooks/book page to display relevant text
* Added /howto into footer links
* Updated error text
* Changed datatype sent by database search page
* Removed Adaptive Images due to serverside load
* Changed head title tag to include " - " inside head.php instead of every file
* Edited cookie input reading
* Updated gitignore to use /non-relative/paths
* Updated error areas that have links
* Updated page names that had conflicts in register rewrites
* Updated registration input cleansing
Merge branch 'development' into feature-myaccount