Raydivine/Calculator — pull request #26 by darklord1310 (2014-08-17 19:01:56+00:00)
Title: Combined all the code together in main.c

- Deleted unneccessary .h file in Calculator.c
- Modified the handle_ENTER function in command_prompt.c, make it compatible and can be merge with samuel and
vt's code.
- Added isEnter variable in command_prompt.c, use to check whether enter key is press or not.