Resolve #99 - Optimize "_sanitize_naughty_javascript"

[Fahl-Design]

fixes #99

todo:

• [x] _sanitize_naughty_javascript with tests
• [ ] _do_never_allowed_afterwards (see test cases testXssCleanNeverAllowedAfterwards)

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This change is 

[coveralls]

Coverage remained the same at 94.01% when pulling 8c027dbe83e5d5459f6735a9bb9e575113482781 on Fahl-Design:optimize_sanatize_naughty_js_check into 20a89b578e354f060ce4188413929a52fdf7f03e on voku:master.

[codecov[bot]]

Codecov Report

Merging #101 (8c027db) into master (20a89b5) will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master     #101   +/-   ##
=========================================
  Coverage     93.98%   93.98%           
  Complexity      183      183           
=========================================
  Files             2        2           
  Lines           665      665           
=========================================
  Hits            625      625           
  Misses           40       40           

Impacted Files	Coverage Δ
src/voku/helper/AntiXSS.php	93.97% <100.00%> (ø)

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