Detect Darwin for beginning to support OS X.
Merge pull request #95 from matsuo/detect-darwin

Detect Darwin for beginning to support OS X.
Fix typo
Add specs for darwin
Bump up version
add md5 checksum
add md5 checksum
matcher name changed have_md5checksum -> match_md5checksum
fix commented code
https://github.com/mizzy/serverspec/pull/97#discussion_r4165069
Merge remote branch 'pr/97/head'
Bump up version
Initial untested implementation of check access to file by specific user, only for linux
spec tests passing
Remove unneeded method, reorder parameters to better match similar commands, and add missing tests for command generation, as per code review on pull request
Merge remote branch 'pr/99/head'
Bump up version
Fix redhat-specific command and use generic 'su' in other linuxes, and also fix solaris in the process.
Merge pull request #100 from flozano/fix_command

Make runuser redhat-specific and use generic 'su' in other linuxes.
Bump up version