Merge branch 'hotfix/1.22.7' into stable
fix quoting of shell initialization file names in installer when checking if rvm is sourced, fix #2205
add rubygems-2.1.2 md5
switch rubies to newer rubygems
1.22.8
Merge branch 'master' into hotfix/1.22.8
Merge branch 'hotfix/1.22.8' into stable
Merge branch 'hotfix/1.22.8'
add missing quotes, update #2205
add rubygems-2.1.3 md5
1.22.9
Merge branch 'master' into hotfix/1.22.9
Merge branch 'hotfix/1.22.9'
do not add duplicate requirements, fix #2206