Merge branch 'hotfix/1.25.33' into stable
Switch default homebrew gcc to 4.8 for OS X Yosemite (and beyond)

Currently, gcc 4.6 cannot compile on OS X 10.10 without patching.

Fixes #3096.
Merge pull request #3097 from alexpennace/brew_with_yosemite

Switch default homebrew gcc to 4.8 for OS X Yosemite (and beyond)
[Minor] grammar correction

It is often confusing, the difference between 'then' and 'than' as well as 'affect' and 'effect'.
Merge pull request #3098 from ParkinT/master

[Minor] grammar correction
improved detection of gcc binary path when not yet installed
bump default rubygems version
osx binary for ruby 2.1.3
allow forcing movable/static installation of older rubies
add note that the binary can be forced if the same path will be used
do not even try to build old rubies on new OSX, closes #3099
1.25.34
Merge branch 'master' into hotfix/1.25.34
Merge branch 'hotfix/1.25.34'
Correct pkg-config to pkgconfig for EL 7

Prior to this commit, `rvm requirements` attempted to bring in
`pkg-config` for EL 7. However, this package doesn't exist; the
correct package name is `pkgconfig`.

This commit renames the package for Red Hat 7, and allows Rubies to be
compiled successfully.
Merge pull request #3101 from rji/el7-pkgconfig-fixup

Correct pkg-config to pkgconfig for EL 7