force db password into a string, in case it's all numbers for YAML parsing
Revert "force db password into a string, in case it's all numbers for YAML parsing"

This reverts commit dd6d98bc4506b2e6a2d7bfaa7249fa3b51c4e00a.
force db password as string
rake task to install rbx-2.0.0dev
jruby install task
support jruby in ruby versions yml file
jruby doesn't have a special build tar
don't keep jruby-x.x.x dir
set $JRUBY_HOME for build
set $JRUBY_HOME for runtime
move JRUBY_HOME setup to setup_ruby_install_env
default to ruby 1.9 jruby support
Revert "default to ruby 1.9 jruby support"

This reverts commit f595279c32cb3b473260a5bd7356464ac8da6df2.
memory settings for jruby
use a generic jruby folder for JRUBY_HOME
memory options for 64 bit machines
file encoding should be utf8 for jruby
build the jruby-launcher
symlink ruby bins for jruby's launcher detection
no need to set jruby_home anymore