Modified regex in preg_match to work with dropbox replicated projects

As per subject.

Dropbox doesn't do symlinks properly, so 

```
$ ls -al vendor/bin/archer
lrwxr-xr-x  1 kosh  staff  28 23 Jan  2014 vendor/bin/archer -> ../icecave/archer/bin/archer
```
becomes
```
$ ls -al vendor/bin/archer
-rwxr-xr-x  1 kosh  staff  483 22 Aug 14:09 vendor/bin/archer
```