In some cases the license-identification header was missing,
so I added that as well. Replaced the remaining headers that
specifically identified "Versions 3.13.7 and higher".
Makefiles and the build system were deliberately excluded.
* 3.15:
minor epicsTimerTest
epicsTimerTest loosen test threshold
debug epicsTimerTest
posix/epicsMath.h
Revert "libcom: fix colliding isnan/isinf between C99 and C++0x for gcc-4"
Revert "libcom: properly declare isnan() in C++ code"
travis-ci /etc/hosts workaround
redo travis-ci with matrix
epicsSockResolveTest add detail
libcom: properly declare isnan() in C++ code
libcom: fix colliding isnan/isinf between C99 and C++0x for gcc-4
libcom: import some C99 math (isnan etc.) into global namespace
# Conflicts:
# .travis.yml
# ci/travis-prepare.sh
