Merge branch 'hotfix/1.25.26' into stable
sort head after versions, keep other names before, fix #2881
1.25.27
add support for PCLinuxOS, update #2808
move Synology detection to the end as it uses grep on commonly existing file
try to install sudo on redhat like systems, update #2808
show all missing stuff and then fail, update #2808
add check for java.home while installing jruby, fix #2778
Merge branch 'master' into hotfix/1.25.27
Merge branch 'hotfix/1.25.27'
only use the first found name of redhat like system in /etc/redhat-release, update #2808
add a warning when user configured -j found, update #2837
fail rvm_pkg when there is no pkg-config, fix #2768
stop instalaltion if requested binary and it failed, update #2761
bump the compability version of binaries to 10.7, on 10.6 there are some issues, update #2511
remove the OSX 10.6 binaries, fix #2511
auto instll enable and start ntp on arch on raspberry pi, fix #2524
fix mounting mruby, fix #2759
do not use rdoc-data on ruby 2.1+
automatically trust new keys when refreshing opensuse repositories, fix #2752