Initial commit
Implemented metrics:counter and metrics:meter endpoints.
Added unit tests.
Implemented metrics:histogram endpoint.
Implemented metrics:timer endpoint.
Added README.md
Added header to enable overriding metrics name in the URI.
Added headers to enable overriding counter increment/decrement in the URI.
Added header to enable overriding histogram value in the URI.
Improved exception and header handling.
Configuration for Travis CI.
Documentation update.
Added header to enable overriding meter mark in the URI.
Added header to enable overriding timer action in the URI.
Update Travis config to build only master branch.
Merge 'https://github.com/laurikimmel/camel-metrics.git' into camel-metrics
CAMEL-7554 - camel-metrics

* Preparing for the pull request
CAMEL-7554 - camel-metrics

* Fixed build issues.
CAMEL-7554 - camel-metrics

* Compliance with Checkstyle rules.
CAMEL-7554 - camel-metrics

* Externalized dependency versions.