Merge pull request #254 from nsendetzky/master

Implements selection client in catalog detail view for product variants
Merge pull request #255 from nsendetzky/master

Extends performance test data by selection products
Merge pull request #256 from nsendetzky/master

Refactors controllers and fixes a bug in the performance test
create junit.xml when running performance tests
create junit.xml when running performance tests
create junit.xml when running performance tests
renamed log-unit output file in performance test
renamed log-unit output file in performance test
fixed delete filename (unitperf)
renamed log-unit output file in performance test
Merge pull request #257 from pschuele/master

Creates junit.xml when running performance tests
Merge pull request #258 from nsendetzky/master

Refactors basket plugins and implements highlighting of items in basket and checkout summary in case of errors
different names for the unittest performance log files

to make sure that we have different reports for the libs/html client 
in the jenkins performance build job because it only shows reports for
unique filenames
Merge pull request #259 from pschuele/master

Uses different names for the performance log files of the unittests
Allow to have multiple items with different types.
Adds new german translations of messages
Modifies phing build: tx pulls only translation files where all messages are reviewed
Updates binary translation files (*.mo)
Merge pull request #253 from cookiekiller/master

Allows multiple items with different types: Implements logic to detect conflicts and prevents them
Changes some German message translations