update version

V1.0.6
optimize auto completion mechanism ;
add a setting item so that you can change lua executable file working
path;
update some tool windows so that they can show better at vs 2013;
fix a bug when typein some words in editor the cursor may not been
controled up/down by keyboard;
fix a bug that may throw an exception when a file is opened by other
application;
fix a bug when typein chinese character behind comment may cause an
exception;