Squashed 'cgilite/' changes from a836764..31fd9a7

31fd9a7 experimental: basic set of css rules
6212086 simplified mac function and cookie format

git-subtree-dir: cgilite
git-subtree-split: 31fd9a726ec96dd58a9e69b941e18b93a3c01f26

Squashed 'cgilite/' changes from a1caf91..a836764

a836764 prefer hmac for session security

git-subtree-dir: cgilite
git-subtree-split: a836764660cf5db4cc02ffd9ea1ddb30aaa432f5

Squashed 'cgilite/' content from commit a1caf91

git-subtree-dir: cgilite
git-subtree-split: a1caf91a5e6ab2d13790ec6a0c1eaf2b4030a0e8