add travis.yml
Test with Firefox 33
Merge pull request #29 from clytwynec/clytwynec/add_travis_yml

add travis.yml
make install-bmp.sh script executable
Use dev bootstrap instead of install instructions.
Merge pull request #30 from edx/make-script-executable

make install-bmp.sh script executable
Suggest using source instead of running the script.
Merge pull request #31 from edx/benp/doc-updates

Use dev bootstrap instead of install instructions.
remove extra comma in help text