Add support for ISO-8859-16 character set. Fixes #1214.
Merge pull request #1199 from voxik/softlink-jruby

Softlink jruby to jruby.bash instead of hard copy.
Fixes #1171. Rails new failed with JRuby on Windows 7
Fixes #1139. ClassCastException when reading non String value from Java System.properties
Fix unsigned bug in 8859-16 decode loop. #1214
Use batch mode for builds before tests.
Don't use pushd/popd for bin/jruby link; missing on travis?
Revert "Use batch mode for builds before tests."

This reverts commit ad2f362be43efcea61d2039a1382142920a1570e.
Related to #1204.  Make Psych emit strings in proper encoding.  IOOutputStream can now explicitly specify what encoding it wants to write strings with
Fix count_spec

Use the appropriate arity to get Enumerable#count to handle its args
correctly.  Note that we need to switch from JavaInternalBlockBody to
a BlockCallback since JavaInternalBlockBody does not currently get its
arguments prepared correctly for the given arity.