Merge pull request #52 from pentie/upstream

add secure rules and document for web servers
twitteroauth: overwrite parameters in the right order

Follows up 31f89d1.
Mod: add more files in gitignore file
Merge branch 'master' of github.com:twip/twip
Mod: use new constructor method since we don't need to support PHP4
Mod: simple extension support

Add a simple pluggable interface that `filter` the process according to
the request URI.
Add: support for twitter's timeline/home.json internal API
Mod: use new plugin system to handle token echoing
fix: broken T mode.