Extend abstract job class by init method called after construction.
Each job class can implement this method(__init) to prepare resources etc.
allow recursive call of the test job using callJob
Fix empty() on Erfurt_Event
add get/setValue with scope, init with job names, ...

get and setValue allows for inter job communication
job init is now done with the identifier (name)
add private, class and global scope for key/values
remove old interface
fix cs issues
Reduce ord() calls in total by ~74% on plain start

Reduces the total amount of ord() calles from 152602 to 39075 (26% left) on
normal OntoWiki start (news page, no model loaded), which reduces the
total impact of Turtle Parser's _isWS() by ~20% (from 32% to 10%)

Decreases load time on my system by 23%
Merge pull request #62 from AKSW/feature/spacerocketingSpeedup

Reduce ord() calls in total by ~74% on plain start
Fix "Too many opened parentheses" in _getTransitiveClosure
Merge pull request #63 from kkda/develop

Fix "Too many opened parentheses" in _getTransitiveClosure