Fix: 0001109: Importing suvey fails

-The importing is not case sensitive, but gives a warning if the question type is lowercase.
-If the type is not in the getqtypelist a warning is issued and the question is not imported.
-The importing summary shows the actual number of questions imported.

I'm not sure about the messages, please try it with the survey file in the bug report to verify. Thanks.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/source/limesurvey@3124 b72ed6b6-b9f8-46b5-92b4-906544132732