Merge branch 'hotfix/1.26.5'
fix the displayed upload target on github in sign-releases.sh
add support for pattern matching in fetch fallbacks, add rubygems fallback to GH, fix #3218
ruby-2.2.0-rc1
jruby-1.7.18
rbx-2.4.1
allow use of bash's errexit (-e) when scripting rvm
merge #3223: allow use of errexit (-e) when scripting rvm
formating after #3223
Update db

Ruby 2.2.0
Ruby 2.2.0 added to list and hash
merge #3230: update db ruby-2.2.0
closes #3229
remove empty key from db
1.26.6
Merge branch 'master' into hotfix/1.26.6
fix escaping in rvmrc templates, fix #3228
Merge branch 'master' into hotfix/1.26.6
Merge branch 'hotfix/1.26.6' into stable