Reduced number of times calling `drupal-detect-drupal-version`.
Fixed bad indentation.
Use `._flymake` as temp file pattern.

Use a mix up of the standard `_flymake` and starting the pattern with
`.` to play with my patch to
[CoderSniffer](https://drupal.org/node/2172383).
Bumped version number.
Merge branch 'release/0.4.1'