Add boundaries to the check_link target name match string
Support FreeBSD 10

FreeBSD 10.0 has "pkgng" of the new default package manager.
pkg_info and such commands has been removed from this version.

I added FreeBSD10 of os type, and tests for "pkgng".
add require freebsd10 into command.rb
Merge pull request #52 from evertrue/evertrue-eherot/add_grep_string_boundary_checking

Add boundaries to the check_link target name match string
Merge pull request #54 from serverspec/support-freebsd-10

Support FreeBSD 10
Bump up version
Merge branch 'master' into add-command-for-freebsd
Add install and get_package_version for FreeBSD10

like 34a45cf and 7c2a3da