Add 2.0.0, 2.1.0, 2.1.1 and 2.1.2 to rdoc-data generation
Force 1.8.7 and 1.9.2 to -head for security reasons. Fixes #2801
fix installing rbx with no version via remote file, update #2847
Merge branch 'master' of github.com:wayneeseguin/rvm
remove old rbx/rubinius replacement, make sure __check_latest=0 is ran before the latest run of __rvm_ruby_string_parse_, update #2847
detect and fix environment files during installation, fix #2835, update #2817
use shells SECONDS when date does not support nanoseconds, fix #2870