minor changes concerning jar-loading in IT's, fixed some compilation bugs, utility method for content checks in IT's
Merge branch 'master' of https://github.com/AHeise/stratosphere-sopremo

Conflicts:
	meteor/meteor-testing/src/main/java/eu/stratosphere/meteor/MeteorIT.java
	sopremo/sopremo-query/src/main/java/eu/stratosphere/sopremo/query/PackageManager.java
edited imports
Merge pull request #25 from fatschi/master

minor fixes in IT infrastructure...