Merge pull request #41 from jwoodcock/master

Fix for Pearrc on OSX
Fixed test failures caused by changed output from symfony/console 2.5.0
Set $COMPOSER_HOME into the virtphp env path

Setting $COMPOSER_HOME to $VIRTPHP_ENV_PATH/.composer, it would make all `composer global xxx` be executed in the virtphp env path, instead of user's $HOME.
Applied @ramsey patch with some fixes
Composer folder for the env should not be hidden
Merge pull request #37 from chadrien/patch-1

Set $COMPOSER_HOME into the virtphp env path
Updating changelog for the v0.5.0-alpha release
Updating to use PHPUnit 4 for tests
To be consistent with branding, changed all "VirtPHP" to "virtPHP"
Merge pull request #44 from ramsey/name-updates

Consistent Branding
Added a logs folder where we dump the pear install results into a file called pear_log.txt
Merge remote-tracking branch 'upstream/master'