Refactor Category pagination
Refactor Subject pagination
Add Zend Developer Tools
Revert "Add Zend Developer Tools"

This reverts commit 7ee38c387c14df4ff7fb0b61c8b46b650e99ca87.
Add Zend Developer Tools
Remove add.phtml from file (move to upload)
Add option interface to files
Add index.phtml to file
Define @stud.hslu.ch as option (#38)