New API to subtract execution data probes.
Merge pull request #53 from jacoco/topic/subtract

API for execution data differences
GitHub #56: Minimize jacocoant.jar
Adjust expected size of distribution
Adjust expected size of distribution
Merge pull request #56 from jacoco/issue-56

Minimize jacocoant.jar
Separate module for Standalone Distribution
Merge pull request #57 from jacoco/distribution

Separate module for Standalone Distribution
EclEmma based on JaCoCo since 2.0.
Eclipse project description, ignore target folder.
Separate session data from IRuntime.
Offline instrumentation APIs.
Ant task for offline instrumentation.
More tests.
Fix pom.xml for Travis CI
Do not sign zip with distribution
Prepare release 0.6.1
Prepare for next development iteration
Fix script due to #57
Add Eclipse-SourceReference headers (issue #7,#59)