_devel_backend.*: add scripts for easy backend reloading (`cygwin` nodenwer set must be in "./bin/")
extjs path: update path file, if its info isn't correct; read it in backend first
app_back log, error: user normal `_log() && _err()`; thus fix aliasing bug in `mwErrorHandler()`
app_back mwErrorHandler: more and propper info output
back: tidy up http, start modules api; front: use Main controller
backend dev tool: run JS from frontend in backend

App.back.JS('req.sessionStore.all(
    function(e, a){
        console.log(ret.s = api.ipt(a, {showHidden : true}))
    })',
    function(opts, ok, res){
        console.log(JSON.parse(res.responseText).s)
    }
)

Chromium's DevTools and system console output:
[ '{"cookie":{"originalMaxAge":null,"expires":null,"httpOnly":true,"path":"/"},"ua":"chrome"}', [length]: 1 ]