wrote some small seed file for webgrouper

Still needs testing
Made full fletched out seed scripts for every table
added comments and some small fixes for DRG seeding
made system 17 public and added browsermanual link
also commiting changes to gemfile.lock
set default system to abrechnung 3.0

and some refactor
reverted previous change

batchgrouper also needs DEFAULT_SYSTEM
some refactors for diagnoses/procedures partials
fixed tests for new default system
handling now nil in webgrouper weighting relations
removed some deprecated files
updated newrelic gem
removed dead code concerning xmlsimple

also removed gem
fixed I18n

Spital -> Akutspital
added scope for public systems

Should be used for further accessing public systems
querying only once for current system
added rspec tests for webapi to repository
adapted tests to new behavior
upgrading some gems
Merge branch 'master' into internal

Conflicts:
	Gemfile.lock