cleanup neo.core docstrings
Merge pull request #32 from toddrjen/docfix

Improve neo core docstrings
update URLs for issues and others
fix dates and license
fix magic lines
cleanup imports and module docstrings
use explicit imports
use consistent from __future__ in neo core
doc conf and examples pep8 cleanup
update documentation on documentation and other bits of documentation
Improve docstring for NeoMatlabIO
Missed a typo in previous commit
Merge pull request #102 from toddrjen/coredoc

Various cleanups to documentation
Bugfix in RawBinarySignalIO when internal is int or uint the final range was wrong.
Merge branch 'master' of github.com:NeuralEnsemble/python-neo
issue #104: undefined function 'extended_to_double' has been replaced by plain float/double conversion for default case (with test_elphyio rerun)

$ workon neo
(neo):iotest$ python test_elphyio.py 
.....
----------------------------------------------------------------------
Ran 5 tests in 4.688s

OK
Merge pull request #106 from dguarino/patch-1

issue #104: undefined function 'extended_to_double' has been replaced by...
Add arguments : take_ideal_sampling_rate false by default this save some case where files are themselve buggy
Fix incorrect cross-reference in Developers' Guide
classes with extra dependencies should fail on init rather than import so the docs still build