Squashed 'bin/' changes from 774bdc3..86d46a9

86d46a9 Explicitly reference bash (not dash) for pre-commit hook
64a6d09 Move WordPress.org SVN checkout outside of Git root
a4aa443 Fix symlinked dirs for Travis; remove PHP 5.2 for Travis
fd97d04 Finish with 5.2 compat; exclude bin from syntax check
ff49315 Improve relative paths for phpunit; update install-wp-tests.sh
c213c44 Run Travis tests on PHP 5.2
4eaa28e Account for renamed files in pre-commit hook
8001c36 Eliminate PHP 5.3 requirement, replacing namespaces and closures

git-subtree-dir: bin
git-subtree-split: 86d46a984bc5102e8b3d4787eea311b01a7e9308
Merge commit '0cd629636d01af46c0af12d09a3e5929d03b0431'