Congratulations and Best Wishes to Charliss and Tyler on their wedding.

Intial python for auto-generating (some) wrapper code.  An idea
originally motivated by Tyler on reviewboard.
Improvements for auto code generation

- Code reorganization for wrappers.py.
- fred_wrappers_raw.h introduced.
- All auto generated files along with wrappers.py moved to "autogen"
  subdir.
- List of auto-generated files:
  fred_wrappers_raw.h
  fred_read_log.h
  wrapper_util.h
  wrapper_util.cpp
  syscallsreal_helper.c
Cleanly build and run FReD.

- Fix a few DMTCP_EVENT_* that's not defined in dmtcpplugin.h.
- Fix minor error in setup.sh
- "TAGS" for .gitignore
Need a "(gdb) continue" for this demo to work.
Merge https://github.com/ningke/fred
Allow setting DMTCP_ROOT on command line.

Set DMTCP_ROOT on command line so setup.sh stays the same for everybody. Just do:
fred@ubuntu:~/local/src/fred$ DMTCP_ROOT=/path/to/dmtcp . ./setup.sh
Merge pull request #5 from ningke/master

A couple of simply fixes/changes