#495 New rtcheck program using libanalyze function (analyze_overlaps)

[Sharan]

This patch replaces the previous rtcheck program and now uses libanalyze function analyze_overlaps.
Additionally there is a -d flag for printing the debug information.
There are two patches, one for the rtcheck program it self.
The other is for a file: doc/trunk_hierarchy.org it had mentioning of viewcheck.c so I thought I must remove it from here. With that I added the files I have added for the patches I had submitted in the past.

[Sharan]

Oops please disregard the file for rtcheck_v1.patch in the OP. It had some other changes which aren't meant for this patch.

[Sharan]

Ignoring if any objects are repeated by the user in the command line and tree command (used to specify the objects via stdin using -M flag.)

[Daniel Roßberg]

I can't apply this patch:
patching file src/rt/main.c
Reversed (or previously applied) patch detected!
and
patching file src/rt/rtcheck.c
patch unexpectedly ends in middle of line
patch: ** malformed patch at line 1292:

[Sharan]

Okay thank you for reviewing it I will fix the issues and send a new one.

[Sharan]

Fixed the issues

[Sharan]

Fixed the issue with region name's memory allocation.
Building the new rtcheck program as nrtcheck for now. (for testing and comparing outputs with previous rtcheck)

[Daniel Roßberg]

Saran got commit access and did the necessary commits by himself.