- test getRepositorySize() with a test file
- implement tests for inTags(), inBranches(), getFile(),
getCommit() and getExtraProperties()
- mark the static methods as untestable
- getPathInfo(), disambiguateRevision() and validateRevision() are done
- we no longer need to check / skip a format_version stanza for the extended
manifest (there is no such stanza outputted)
Main test infrastructure is there, still lots of functionality left
for testing. Fixed a possible bug in the SCM interface already:
Pluf_HTTP_Response_NotFound needs a request instance as ctor argument,
which we don't have at this point, therefor we just throw an exception.
