Added implementation of static method DatabaseUtils.appendEscapedSQLString with test coverage
Merge branch 'databaseutils_branch' of git://github.com/blundell/robolectric into blundell-databaseutils_branch

* 'databaseutils_branch' of git://github.com/blundell/robolectric:
  Added implementation of static method DatabaseUtils.appendEscapedSQLString with test coverage

Conflicts:
	src/main/java/com/xtremelabs/robolectric/shadows/ShadowDatabaseUtils.java
	src/test/java/com/xtremelabs/robolectric/shadows/DatabaseUtilsTest.java