Upgrade PHP 5.6 to RC3
Fix install_args overrides in php5[456] to work again
Updated phpDocumentor to v2.6.1
Update phpMyAdmin to 4.2.6
Preserves the "php-ish-ness" of the script.

Addresses issue #1249 - preserves the ability to include() and require() the
script to sub-set its functionality, as well as enabling execution by the
PHP binary.
Prevent require_once()'d file from echoing its shebang as first line of output.

Resolves an edge case where a parent php process (the one calling the phpcs
wrapper script) is not started in quiet mode resulting in the shebang of the
actual phpcs script being shown as the first line of output. This is an addition
to pull request #1250 and issue #1249.
phpDocumentor: fix hash
Revert "Prevent require_once()'d file from echoing its shebang as first line of output."

This reverts commit 279153b1a67a095b6cbdbf365072829959b22d16.
Revert "Preserves the "php-ish-ness" of the script."

This reverts commit a93c8e545f0671e302887550e2df6a9cfd9d19a1.
Updated CodeSniffer

Versions: 1.5.4 and 2.0.0RC1