Execute Code Style Checks in Travis

# Do not merge, this is work in progress

This pull adds the PHP scrimp that @mbabker  did for com_localise in Joomla repo. This script is run by travis and it will do:

```
# When issues are detected Travis will fail
exit(1); 

# When no issues Travis will succed
exit(0);
```

If we are able to get rid of all the current code style issues in the CMS we will be able to merge this pull request and it will automatically check new Pull request failing when a code style issue is added.