= core: first simple approach to providing traces and a subscription mechanism.
= core: use MetricsOnly contexts for remote contexts
+ core: introduce Sequencer to generate a incrementing sequence of Longs with a simple Long overflow protection
+ core: cleanup the simple trace implementation
Merge branch 'wip/simple-tracing-implementation'
= core: use Sequencer instead of AtomicLong
= core: include license headers
! kamon-jdbc: instroduce Statements Metrics like writes, reads, errors and slows queries counter
+ kamon-jdbc: * include StatementInstrumentationSpec
= kamon-jdbc: minor refactor
= kamon-jdbc: change execution pointcut to call
+ kamon-jdbc: introduce SqlErrorProcessor
= jdbc: rename processors in Spec
+ kamon-jdbc: introduce Jdbc segments
+ kamon-jdbc: introduce kamon-jdbc module
+ system-metrics: two-phase sigar loading
* update slf4jVersion
* redirect JUL and LOG4J logging to SLF4J
* use two-phase sigar loading