FIX: correctly load the stim channel from EDF+ files.
removed debug output
implemented event parser
added test case for the event parser (WIP)
python 2 compatibility
put stim_channel masking in again
support for EDF+ annotations (TALs)
PEP8: blank line
regex tal parser
unittest for the tal parser
disabled file test (for now)
adjusted parser test for python 2
coding style
added test for empty annotation
create stim channel from tal events
python 2.6 does not like dict comprehensions :(
Added authorship information
Updated changelog
zero order hold interpolation of stim channel
whitespace around operators