Script is not used in this example
Merge pull request #323 from cimm/remove_unused_script_multisig_example

Script is not used in this example
add contributing.mdwq
Merge pull request #328 from maraoz/add/contributing

add contributing.md
Replace process.versions tests by browserify's package.json browser field. Fixes #329
Merge pull request #330 from olalonde/fix/329

Use browser field in package.json instead of process.verions tests