Merge pull request #9 from HernanRivasAcosta/master

Parity
added filters when subscribing to kafkerl events
Merge pull request #15 from inaka/hernan.subscription_filters

Hernan.subscription filters
Merge pull request #10 from HernanRivasAcosta/master

Parity
added missing clause when filtering events
Merge pull request #16 from inaka/hernan.quickfix.filters

Hernan.quickfix.filters
fixed a bug where certain error codes were wrongly treated as unsigned integers
Merge pull request #17 from inaka/hernan.quickfix.unsigned_error

fixed a bug where certain error codes were wrongly treated as unsigned i...
Merge pull request #11 from HernanRivasAcosta/master

Parity
fix list of subscribed events not being handled properly
Merge pull request #18 from inaka/hernan.subscription_fix

Fixes a bug on the subscriptions
Merge branch 'master' of https://github.com/HernanRivasAcosta/kafkerl into cluster_support