Merge branch 'hotfix/1.21.14'
autodetect certificate files only if not given, notify @remear
move __rvm_path_match_gem_home_check earlier in rvm invocation to prevent issues when loading .rvmrc in cd, fix #2050
add test for cd .rvmrc GEM_HOME warning, fix #2050
make sure cd hook is loaded when testing GEM_HOME warning, update #2050
simplify logging dotted, update #2051
ClearOS is a CentOS system
Add DragonFly BSD support

Port RVM to DragonFly <http://dragonflybsd.org>, a FreeBSD fork.

Dependency installation only supports binary packages via pkgng, neither
building from source nor pkgsrc are implemented.
fix "bad math expression"
use new rubinius release-2.0.0-rc1 md5, fix #2060
Merge pull request #2062 from hron84/features/clearos-support

ClearOS is a CentOS system
simplify detecting ClearOS as CentOS, update #2062
Merge pull request #2063 from matthiasr/dragonfly-support

Add Dragonfly support
handle spaces and slashes in log file names, update #2051
remove requirement for developer/library/lint on solaris and openindiana, update #2051
fix detecting pkgng on freebsd
Merge pull request #2066 from wayneeseguin/bugfix/freebsd_pkgng_detection_2066

FreeBSD pkg.conf check does not account for manually added packages.
1.21.15
Merge branch 'master' into hotfix/1.21.15
Merge branch 'hotfix/1.21.15' into stable