Merge branch 'hotfix/1.17.8' into stable
binaries for ruby-1.9.3-p362 + ruby-2.0.0-rc1
1.17.9
binaries for ruby-1.9.3-p362 + ruby-2.0.0-rc1

Conflicts:
	config/md5
	config/remote
	config/sha512
Merge branch 'hotfix/1.17.9'
avoid extra PATH cleaning when not needed, update #1446
extract PATH extra slashes cleaning to separate function, update #1446
spped up alias lookup time, update #1446
speed up rvm current, add time debugging information, update #1446
load collors only if not set or on reload, update #1446
do not clean PATH from double slashes if not needed, simplify code, update #1446
only cache colors when set, update #1446
remove old empty files
support ancient centos, fix #1445
fix rvm ... do when rvm is not a function, fix #1447
Add ruby-1.9.3-p374
Merge pull request #1451 from hokkai7go/193p374

Add ruby-1.9.3-p374, closes #1452
add multilib patch for 1.9.3-p374, update #1451
Merge branch 'master' of github.com:wayneeseguin/rvm
prevent missing /etc/rvmrc warning, fix #1454