Major rewrite of template system:

Major rewrite of template system:
- Major rewrite on template system:
  + Added code in flushTemplateCache() which will reduce compilation loops
    in doFinalCompilation() which gives a speed boost about 10-20% (not sure)
  + All template caches are now included, not read which gives another speed
    boost
  + DO ALWAYS PURGE YOUR TEMPLATE CACHES!!!
- Other minor rewrites
- Internal TODO closed by removing deprecated parameters
- TODOs.txt updated