Add middleware for HTTP Basic authentication.
Merge branch 'http-basic' of git://github.com/asmallteapot/Barista

Conflicts:
	Barista.xcodeproj/project.pbxproj
	BaristaDemo/BARDemoServer.h
	BaristaDemo/BARDemoServer.m
Moved some things around
Updated podspec with basic auth
Updated README