Merge branch 'hotfix/1.18.21' into stable
quieter curl
Merge branch 'release/1.19.0' into stable
Merge branch 'master' into feature/quiet-curl
Add documentation for --quiet-curl
speed up tests by reoving gem/bundler update commands
speed up tests by reverting gem/bundler update commands
improve the message for failed dependencies, fix #1720
fix update-system and error messages, improved autolibs level detection in update-system, update #1720, update #1724
--quiet-curl support in zsh completion
--quiet-curl option shown in completion
fix rvm_requiremnts_fail_or_run_action, update #1720, update #1724, found: http://stackoverflow.com/questions/15587298/cant-install-ruby-1-9-3-via-rvm-in-os-x-lion-even-with-with-gcc-clang/15587558?noredirect=1#comment22320984_15587558
NEXT: 1.19.1 with 1720 / 1724
fix compiler detections
NEXT: 1.19.1 - fix compiler detections
add a warning for ZSH caching problem with __rvm_cleanse_variables, fix #1746
NEXT: 1.19.1 with 1746
extract curl handling to separate function
Merge branch 'master' into feature/quiet-curl

Conflicts:
	scripts/functions/requirements/openbsd
bring improved curl handling to installer