Add contirbution guidelines
Change all code to a consistent style

We use the Linux Kernel format now.
Merge pull request #24 from Elemental-IRCd/chore/restyle-code

Change all code to a consistent style
Merge pull request #23 from Elemental-IRCd/chore/contributing-document

Add contirbution guidelines
Fix conflicts with PR #24

Conflicts:
	libratbox/src/openssl.c