more tests, better comments
Added gas meter (meter readings) in EntityDefinition
Merge pull request #72 from Phunkafizer/master

Added gas meter (meter readings) in EntityDefinition
in json, unlike php, a comma after the last array element is not allowed
Merge pull request #73 from andig/unittestfixes

Unit test improvements and Counter/MeterInterpreter precision fixes
Merge branch 'master' into master-travis