replace make install to checkinstall for linux installation
Update INSTALL.md
Merge pull request #161 from theshadowfog/patch-1

Update INSTALL.md
renamed getname to getfriendname and added a getname function to get the name of our client
changing testing clients to reflect changes made in core/Messenger.h
added utility function format_message
Update nTox.c

Added help command to nTox.c
Fixed cmake
Merge pull request #165 from nurupo/master

Fixed cmake
Merge pull request #166 from theshadowfog/patch-2

Update nTox.c
Merge branch 'patch-1' of https://github.com/dypa/ProjectTox-Core into dypa-patch-1

Conflicts:
	INSTALL.md
Added a note about libconfig
Merge pull request #168 from nurupo/master

Added a note about libconfig
Merge branch 'master' of https://github.com/blackwolf12333/ProjectTox-Core into blackwolf12333-master

Also fixed his pull request.
Clarification.
Add missing newlines at EOF in sources

(missing newlines break build due to -Werror)
Fix "comparison is always true due to limited range of data type" warning
Fixed segfault.
Update .gitignore
travis: use apt-get -y option instead of GNU yes
The Advanced Packaging Tool has an option to automatically assume Yes to all queries. We don't
need to use GNU yes for this.