improve autoconf to conditionally include eiger or papi in build, with defines when things are available
implement sstmac backend. requires config for turning on measurment and papi
Use LWPERF prefix for all config macros (_USE_CSV, _USE_EIGER, etc)
Remove unneccessary header
fix symbol visibility and some typos
Update license to MIT
Update version number and info
first draft edit of documentation
remove prefix/suffix from init