fix warnings about ignoring return values
added travis build
rename makefile variable to avoid what should be called USE_PLUGIN, but is not yet
added TAGS target
added Makefile options to point at kernel usr/include when building
optional objects may need to be inserted into the middle of list so that they can depend upon items further down
include Makefile.options if it exists
added roaring penguin vendor attributes
added Roaring Penguin custom radius options
added bandwidth limits
structures for extended pppd stats
declare some globals
introduce JUMBO_PPP_MRU
added USE_FULL_AUTH
added USE_SERIAL
use PROTOCOLS_CNT macro to keep from overrunning array
added code to restart option negotiation by longjmp back to beginning
added renegotiating with realm exit and msg about state
added ALL_OPTIONS define
added USE_ECP