UIMA-3303 Import type aliases when strictMode is off

git-svn-id: https://svn.apache.org/repos/asf/uima/ruta/trunk@1563535 13f79535-47bb-0310-9956-ffa450edef68
UIMA-3303 Import package aliases when strictMode is off

git-svn-id: https://svn.apache.org/repos/asf/uima/ruta/trunk@1563536 13f79535-47bb-0310-9956-ffa450edef68
UIMA-3303 Minor refactoring in RutaEnvironment

git-svn-id: https://svn.apache.org/repos/asf/uima/ruta/trunk@1563537 13f79535-47bb-0310-9956-ffa450edef68