Fixed typos
Merge pull request #13 from pborreli/typos

Fixed typos in comments and output. Also removed unneeded docblock declarations.
Add logo image to our README
Changed all references of VirtPHP, with a capital, to virtPHP, with a lowercase, to match branding.
Changed description to match branding.
Test on hhvm but ignore failures
Merge pull request #15 from philsturgeon/patch-1

Test on hhvm but ignore failures
To prevent collision with virtualenv we put in a test that would kill the activate script if an active virtualenv session was detected. Also added a check for if an active virtphp session was in place and if so, looks for a y/n response before either stopping the new activation or proceeding with new activation.
Removed unneeded echos in checking response of switching virtPHP session.
Merge pull request #16 from jwoodcock/master

Checks for active virtualenv and virtphp session.