Refactored "migrate" method - split on a few smaller.
written tests for MigrationManager class.
excluded class with main method from instrumetation and verifying test coverage
fixed spelling, removed useless newlines, changed test string "blah" with "bar"
Merge branch 'master' into feature-refactore-MigrationManager

Conflicts:
	pom.xml
	src/main/java/com/sharethis/mongodb/migration/MigrationManager.java
	src/test/java/com/sharethis/mongodb/migration/MigrationManagerTest.java
excluded from testing test coverage maven plugin class(the same as class with main method)
Merge pull request #4 from socialize/feature-refactore-MigrationManager

Feature refactore migration manager