Merge pull request #20 from maiflai/scoverage-master

Issue #19: do not append parameters with empty value
bumping version
[Gradle Release Plugin] - pre tag commit:  '0.6'.
[Gradle Release Plugin] - new version commit:  '0.7-SNAPSHOT'.
Merge remote-tracking branch 'scoverage/master' into scoverage-master

Conflicts:
	gradle.properties