minor bug fix
We have done some house-keeping, so even tough the only real change here is a minor bug-fix, this release is an improvement.
- -Werror
- -Wshadow, plus a big-fix found from it
- fixed most warnings (but still cannot use -Wconversion with older compilers, or -Wsign-conversion with newer)
- dockerized Travis CI builds
- explicitly use older compiler in Travis (gcc-4.6, while master branch uses gcc-4.9 or later, plus -std=c++11)
(0.10.3
was a non-release because of a signing error in 0.10.2
.)