Squashed 'static/' changes from 0d38fdf..42bd234

42bd234 add c utils

git-subtree-dir: static
git-subtree-split: 42bd234e29895bcbfda4909846929fac10c14caf
Merge commit '76551c4cb9e207f0bfd027e42f7b4eb689a7c0d5'
Squashed 'static/' changes from 42bd234..c6fdffb

c6fdffb edit

git-subtree-dir: static
git-subtree-split: c6fdffb1c020e5cb2e45f00b305f6a0740220fdd
Merge commit '396500ee53f47fa6b53c7d1a607b4ab8eca222dc'