Allow more than needed indention as long as it is a multiple of 4

Ignore-this: f726358f915c70244775ae53817fd008

darcs-hash:20091020212424-7ad00-afb16eac694ee6fedfb4717d5088c923d85a9b94.gz

Ignore-this: a7df997caaa37d97734bbf2afd969e0d

A first try to define a testable coding standard for DokuWiki. This is still
missing a few tests and also fails for a lot of things in DokuWiki.

darcs-hash:20091018172036-7ad00-7edf5cb732f82d6ad7d1112a24d0c0b8b2d6452f.gz