Continued improving the DB

1 Renamed printImage to getImageLink
2 getImageLink returns URL instead of <img> tag
New DisplayDB-WIP1

1 Implemented new design of DB
2 Added separate stylesheet for the new DB display
3 Moved variables to $_SESSION variable, i.e. cookies
Merge pull request #7 from Benjatorix/DisplayDB_redone_2

Display_db_redone_2_WIP1