Fix rendered characters have been chipped for some TrueType fonts

ImageFont ignores descender value of TrueType fonts (uses ascender only),
then some fonts which use descender is chipped on rendering.
initial merge of wiredfool/Python-Imaging-Library-G4-Tiff-Support
initial merge of wiredfool/Python-Imaging-Library-G4-Tiff-Support
() for print, since we're using print_statement
test suite for g4 tiff images
typo
add support for webp
fix warning for python3

use PyUnicode_FromString instead of PyString_FromString
this warning prevented loading _imaging, somehow
fixed check for str with Python 3
Changed PyString_* to PyBytes_*, corrected a couple of minor warnings
Merge branch 'master' into g4_support
enabling debug build to get better info on travis errors
Merge pull request #97 from olt/pil-png-transp-backport

Python 3 compatibility for PNG/ZIP improvements
Merge pull request #96 from lqs/master

add support for webp
Hide emails
Clean up
more verbose testing, checking for g4 compression
replaced pydict_next with a for loop, due to py_ssize_t warning and issues on 64bit system
following rename of find_library_file to _find_library_file
linefeed in debug