workaround build issue
lower min version for travis
add flag to env
try g++ build
update travis build
update build
change build to get around perms issue
try 12
try 13
try 14
try 15
try 16
try 17 remove GCC requirement
compiling! turn on unit tests
another pass, run unit tests
switch to clang, remove failing test
update clang
clang try 3
changed no ref qualifiers workaround
try and fix test