add DB tables for candidate handling
Add methods to check if an item is pending for or in the stdlib
add config for new DBs
begin a Candidate class for candidate handling
add candidate creation API
fix path
add .htaccess file for candidates
fix DB table constant name
add listing function to Candidate class
begin listing API for candidates
begin rating of candidates

Begin the API method for accepting / rejecting an item.
Add a method to the candidate class to store a rating.
Adjust .htacces file.
retrieve the user who suggested a candidate
retrieve item for candidate ID and vice versa
Rename + Add methods

Two methods for existence-checking: one by candidate ID,
one by item ID. Adjust create.php to use the one by item.
add checks in case a candidate is not found
Add DB column and method for approval
implement method for acception status retrieval
add a method for checking if candidate has been approved
Add missing config file required for Candidate::accepted()
Begin API method for candidate approval