Re-written interactive mode, and now it supports stringsgit add src/main.c
Rewritten read() using pointer
Improved the install script, remove the uninstall script
Merge pull request #6 from chiayolin/nbc-develop

Nbc develop
Added complier parameter
Added scan()
Improved control flows, and added set().
Added STATE.
Added c_state(). Added prefix c_ to every interactive command
Added prefix c_ to every interactive command
fixed segmentation fault when user enter nothing in interactive mode.
Added prefix c_ to every interactive mode command
Now VERSION is display as a string
Wrritten functions using pointers
Added Dec. to Oct. conversion
Added option -lm to link math libaray
Added color code
Improved format
Improved Code
Update README.md