add .travis.yml
add ccache to travis.yml
fix an error in .travis.yml
add clang to travis
correct a typo
correct an error in travis.yml
add make check ot travis
Merge remote-tracking branch 'upstream/develop' into develop
show ~/.R/Makevars
try change to trigure clang compiler
correct an error
use stan origin/develop
add coda package to travis.yml
revert to install rcpp from source
add BUILD_OPTS to make build
add no-build-vignette to travis build
add more optimization level
correct a typo in using sed
allow failure of O=0 on travis
correct syntax error in travis.yml