Handle trailing slash redirection

Usefull for simple views that use them
Don't use the wheelify
Search package name with undescore/hyphen

ref #21
Change Package.by_name to accept _ or -

ref #21
Bump new development version
Fix a typo
Release 0.9.2
Remove useless import
Fix tests to be python2.6 compatible
Bump version number for development
Fix pyramid 1.2 compatibility
Rename command pyshop_install to python_setup
Fix stuff for pyramid 1.2
Fix package mirroring for unknown package
Change terms in README
Declare missing scss var
Give the possibility to disable xmlrpc view
Give the possibility to prefix routes
Fill changelog
Release 0.9.3