dev: fix comments for users/ids+lookup flow
dev: --B some for-in <for(var i> to <var i;for(i>
dev: added API.getType()

this function get type of *.json
(tweet, user, list, directmessage, ..)
upd: cache more json if contains myself or my list
Merge branch 'master' of github.com:0mg/userjs