first commit

dev branch
major improvements

preparation of cron/daemon (async) (in development)
adding tracker performance (process time)
preparation cache (in development)
separation of the client/API classes
bugfix & improvements

fix loading class
fix pattern verification for shorturl (guest & api)
add functional cache class (memcached)
add async function (prepare cron/daemon in db)
fix return value for db statement insertion
CRON/ASYNC: first version

First functional version for async operations.
bugfix & improvements

fix processTime
update 404 process (easiest method)
add regular 404 in htaccess
update README
debugger
dummy things
Merge pull request #1 from alexalouit/dev

Stable async and cache version from dev branch?