PEP8: fix minor issue in multidim.py
DOC: improve multidim module docstrings.
Merge branch 'pr/15' into master.
DOC: remove print statements in doctests
MAINT: remove pointless del statements
MAINT: remove unnecessary c_math.pxd
[DOC] doctrings for multilevel functions
MAINT: remove some unnecessary use of the Python C API in _pywt.pyx
[DOC] fix doctests
MAINT: fix Cython compile warnings, and remove some commented out code.
[DOC] format/add docstrings
DOC: add signatures to docstrings of _pywt.pyx functions.
Merge pull request #17 from sciunto/doc_multilevel

[DOC] doctrings for multilevel functions
MAINT: remove unused file c_string.pxd.
MAINT: clean up convolution.template.h
MAINT: make comment style in header files portable.

See Numpy C style guide for details.
MAINT: clean up unused definitions in c_python.pxd
MAINT: clean up common.h, remove support for Python 2.4
MAINT: clean up convolution.template.c for comments and line length.
Merge branch 'comments' into master