Add simple number IO prog
Add simple two value summation prog
Add comments and improve spacing
Consolidate IO chunks

There were two IO chunks with the exact same code, so I figured out how
to consolidate the code that retrieves user input from stdin (the terminal).
The num1 and num2 variables are actually assigned values in the single
cin<< statement.
Fix integer solicitation
Add official summation function

Add a function to sum two integers. Replaced the main() local 'sum' variable
with a function in the final cout<< statement.
Commit all learning projects
Add prog to explore strlen() function
Change null-termination based conditional
Add support for ex15.c
Add lesson 15 about pointers
Commit changes to all files
Merge branch 'master' of github.com:R-Morgan/language-learning