Merge pull request #18 from NiteshKant/master

Adding stats to mock backend and rxnetty-impl
Merge pull request #19 from NiteshKant/master

More error counters for rxnetty-impl
Merge pull request #20 from NiteshKant/master

WSClient was counting latencies for errors
updated gradle wrapper to 1.11 for java 8 support
Merge branch 'master' of github.com:benjchristensen/WSPerfLab
adding json metric logging
Fix build failure