Merge pull request #17 from rpatterson/master

Add coverage for multipart non-ascii messages for #16
prep for 0.9
use assertEqual instead of assertTrue
consider 'false' as False for the tls and ssl settings (fixes #19 )
handled to encode the attachments with Content-Transfer-Encoding header's method (fixed #18)
support setup.py dev, use setup.py dev in tox.ini, make a better test assertion and maybe fix one test on domen's system
Merge branch 'master' of t2y/pyramid_mailer into pull.21
added 3.3 trove classifier
Merge branch 'pull.21'
Merge branch 'master' of ccomb/pyramid_mailer into pull.20
boolean settings now convert to false unless 't', 'true', '1', 'y'
bump master to 0.10dev
remove debug from boolean settings
added some doc updates
added intersphinx support
garden
prep 0.10
updated release date
Update docs/index.rst
Update docs/index.rst