Merge jruby-1_7
Merge pull request #1199 from voxik/softlink-jruby

Softlink jruby to jruby.bash instead of hard copy.
[IR] Fixed off-by-1 error replacing instruction in an instr array

* Fixes occasional crasher running mspec with
  AddLocalVarLoadStoreInstructions pass enabled.
Fixes #1171. Rails new failed with JRuby on Windows 7
Hmm forgot to push my merge
Merge 1171 Fix to master
Fixes #1139. ClassCastException when reading non String value from Java System.properties
Merge 1139
Fix unsigned bug in 8859-16 decode loop. #1214
Fix unsigned bug in 8859-16 decode loop. #1214
Merge branch 'jruby-1_7'