Added new cache directory for mpdf
Fixed template loading
Removed not needed files
Added git ignore
Fixed tmp path
Updated mpdf to version 5.7
Prepared 3.0 release
Added intellij project files to git ignore
fixed notice error due to lack of isset()
Added missing files to fix issue #3
Fixed a issue with the tmp directory
Updated readme
Prepared version 3.1.2
Merge branch 'master' of github.com:fkrauthan/wp-mpdf

Conflicts:
	wp-mpdf.php
Merge branch 'master' of github.com:fkrauthan/wp-mpdf

Conflicts:
	wp-mpdf.php