TODO:
----
short term: full ats program guild

target release  | description
0.2.0           | 1. to load third party Atli library.
                | 2. to include another atli script files in one atli script file

target release  | description
0.1.0
                | 1. write atli programmer guild
                |     - quick start (done by linxs)
                |     - basic element and grammar(done by linxs)
                |     - application develop guild
                |     - license announce (GPL)
                |     - script sample lib (done by linxs)
                |     - application sample 
                | 2. mix arithmetic and logic caculation (done by linxs)
                | 3. backslash as escape character in string (done by linxs)
                | 4. string plus (done by linxs)

