Merge pull request #334 from lukechampine/master

temporary fix to prevent m_addfriend from segfaulting
Added a 'clear' function to the prompt
Merge pull request #338 from Nominate/patch-1

Added a 'clear' function to the prompt
Grammar/aesthetic amendment
Merge pull request #339 from Nominate/patch-3

Grammar/aesthetic amendment
refactors the friend list to use a linked list instead of a static array