Merge branch 'release/v0.4.1' into develop
Remove trailing whitespace in LICENSE
Add tests for arch option
Add support for node-gyp’s --arch parameter
Document options.arch in README.md
Add ARM build usage example to README.md
Merge branch 'feature/arch-option' into develop
Remove tasks/gyp.js before running tests

Otherwise Grunt would prefer tasks/gyp.js over tasks/gyp.coffee and changes in the CoffeeScript source would have no effect.
Add v0.5.0 to release history
Bump version number to v0.5.0
Merge branch 'release/v0.5.0'