Merge pull request #16 from tjragan/pipe_fix

BUG: Two NMRPipe related fixes.
STY: PEP8 on multiple files
Added an integration test for full processing of 2D complex data.  Full processing of 2D mixed mode data showed bugs in the pipe_proc.ft and pipe_proc.tp commands.  The tp bug was fixed and a unit test for it was added.  The ft bug still exists and needs to be fixed.
Merge branch 'master' into improved_bruker_import

Bring the improved Bruker import code up to date with the fixes made to the pipe_proc module.
Fixed the new import code to pass all the standard tests.  Added a line in the test suite to create an acqu3s file for testing.
Added a MAC file to pipe_proc.  The only macro is currently the bruk_ranceY macro used for Rance-Kay type shuffling used in 2D PEP experiments.