Add support for XML config file and use outfile for results

Review Request #9516 — Created Jan. 22, 2018 and submitted — Latest diff uploaded

Information

ReviewBot
master
eef1cac...

Reviewers

If a user has a complex ruleset file he can paste the whole
configuration to the ReviewBot config.

Redirect check result to output file as pmd could still
print some warnings that will break any parsing of CSV
output.

Used basic ruleset as cmdline parameter and saw correct results.

Paste a 6kb big xml config file and saw correct results.