remove rvm_remote_server_type, update #2743, notify @rkh
do not reset variable value when there was nothing in db, fix __rvm_db, update #2743, fix 1c952f9
rename __rvm_system_path_for to __rvm_system_paths, update #2743
always check all remote options for binary rubies, update #2743
fix detecting rubies without ruby-, update #2743
fix matching ruby file names with ruby string, update #2744, update #2743
fix post-help message
Merge pull request #2748 from stomar/help-message

fix post-help message