Merge branch 'hotfix/1.21.5'
add a confirmation for requirements that it actually did something
make sure all usage calls are directed to help, fix #2010
fixed typo

When running "rvm install 2.0.0" the output says:
ruby-2.0.0-p247 - #configuring......
ruby-2.0.0-p247 - #compiling......
ruby-2.0.0-p247 - #installing ......

This commit removes the space at the end of "installing" to make it
more consistent with the other outputs ("configuring" and "compiling").
Merge pull request #2012 from stephanerangaya/master

Removes useless spaces
move code to fix ruby configs to place available in installer, fix #2011
Merge branch 'master' of github.com:wayneeseguin/rvm
fix evaluation of missing rvm_ variables in installer
new Raspberry Pi binaries, closes #1893
typo
Merge pull request #2013 from Nerian/typo

typo
do not check symbolic links when scanning permissions in multiuser mode, fix #2009, update #2001
Merge branch 'master' of github.com:wayneeseguin/rvm
report error if failed to set permission on scripts, update #2001
1.21.6
Merge branch 'master' into hotfix/1.21.6
Merge branch 'hotfix/1.21.6' into stable