BUG: deleted not existing directory
ENH: Reading Bruker processed data files

* also pep8 changes to bruker.py
BUG: shape determined from pulse programs with string variables
Replaced hard-coded paths in tests/setup.py

Now using os.path functions and the __file__ variable to work
out the location of DATA_DIR instead of hard-coding it
TST: explicit csh usage in tests
TST: replaced additional paths
DOC: updated README.txt
DOC: added simulate_ucsf example
ENH: rev parameter added which applied the reversed apodization

* `rev` parameter added to all apodization functions in proc_base.py
  which when set True will reverse the apodization window before
  applying the window.
* adjusted style in proc_base.py to meet PEP8 standard.
Code to read in Tecmag TNMR .tnt files
MAINT: clean up and documentation of tecmag module
STY: pep8 on fileio modules
STY: pep8 on analysis modules
STY: pep8 on process modules
STY: pep8 on misc.py
BUG: fixed edge methods in 3 parameter lineshape classes
BUG: fixed bug in varian.py
TST: tests working on OS X
TST: Tests work on Linux x86-64
TST: unit tests for fileio/pipe module