Merge pull request #16 from EclipseUCOSP/bugfix

Bugfix
Add config.properties to keep track of static configurations

Add config.properties to keep track of static configurations. Right
now only the web service URL is kept in the file. Code to
dynamically load the URL is also included.
Merge branch 'master' of https://github.com/EclipseUCOSP/org.eclipse.cbi.versionchecker
change some of the Object types to VCArtifact
ignore org.eclipse.cbi.versionchecker.maven.p/target/
read webserviceurl from config.properties in getCurrentRepo()
closes #18 - separated tycho qulified and unqualified versions