Check on archives is broken

[chris-rock]

Check works on directories:

$ b bin/inspec check base_linux 
I, [2015-12-31T12:55:37.496650 #86922]  INFO -- : Checking profile in base_linux
W, [2015-12-31T12:55:37.496768 #86922]  WARN -- : The use of `metadata.rb` is deprecated. Use `inspec.yml`.
I, [2015-12-31T12:55:37.496801 #86922]  INFO -- : Metadata OK.
D, [2015-12-31T12:55:37.496887 #86922] DEBUG -- : Found 45 rules.
D, [2015-12-31T12:55:37.496904 #86922] DEBUG -- : Verify all rules in  base_linux/tests/filesystem_spec.rb
D, [2015-12-31T12:55:37.496923 #86922] DEBUG -- : Verify all rules in  base_linux/tests/sysctl_ipv4_spec.rb
D, [2015-12-31T12:55:37.496956 #86922] DEBUG -- : Verify all rules in  base_linux/tests/sysctl_ipv6_spec.rb
D, [2015-12-31T12:55:37.496974 #86922] DEBUG -- : Verify all rules in  base_linux/tests/sysctl_spec.rb

Generate an archive:

$ b bin/inspec archive base_linux
I, [2015-12-31T12:56:01.576715 #86956]  INFO -- : Checking profile in base_linux
W, [2015-12-31T12:56:01.576854 #86956]  WARN -- : The use of `metadata.rb` is deprecated. Use `inspec.yml`.
I, [2015-12-31T12:56:01.576889 #86956]  INFO -- : Metadata OK.
D, [2015-12-31T12:56:01.576929 #86956] DEBUG -- : Found 45 rules.
D, [2015-12-31T12:56:01.576942 #86956] DEBUG -- : Verify all rules in  base_linux/tests/filesystem_spec.rb
D, [2015-12-31T12:56:01.576960 #86956] DEBUG -- : Verify all rules in  base_linux/tests/sysctl_ipv4_spec.rb
D, [2015-12-31T12:56:01.576989 #86956] DEBUG -- : Verify all rules in  base_linux/tests/sysctl_ipv6_spec.rb
D, [2015-12-31T12:56:01.577007 #86956] DEBUG -- : Verify all rules in  base_linux/tests/sysctl_spec.rb
I, [2015-12-31T12:56:01.577170 #86956]  INFO -- : Profile check finished. Generate archive /Users/chartmann/Development/compliance/inspec/base_linux.tar.gz.
D, [2015-12-31T12:56:01.577543 #86956] DEBUG -- : Add the following files to archive:
D, [2015-12-31T12:56:01.577563 #86956] DEBUG -- :     metadata.rb
D, [2015-12-31T12:56:01.577572 #86956] DEBUG -- :     README.md
D, [2015-12-31T12:56:01.577581 #86956] DEBUG -- :     tests
D, [2015-12-31T12:56:01.577589 #86956] DEBUG -- :     tests/filesystem_spec.rb
D, [2015-12-31T12:56:01.577597 #86956] DEBUG -- :     tests/sysctl_ipv4_spec.rb
D, [2015-12-31T12:56:01.577604 #86956] DEBUG -- :     tests/sysctl_ipv6_spec.rb
D, [2015-12-31T12:56:01.577611 #86956] DEBUG -- :     tests/sysctl_spec.rb
I, [2015-12-31T12:56:01.582945 #86956]  INFO -- : Finished archive generation.

But check does not work on archives anymore

$ b bin/inspec check base_linux.tar.gz 
/Users/chartmann/Development/compliance/inspec/lib/inspec/profile.rb:29:in `initialize': Cannot find directory base_linux.tar.gz (RuntimeError)
    from /Users/chartmann/Development/compliance/inspec/lib/inspec/profile.rb:15:in `new'
    from /Users/chartmann/Development/compliance/inspec/lib/inspec/profile.rb:15:in `from_path'
    from bin/inspec:76:in `check'
    from /Users/chartmann/.rvm/rubies/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
    from /Users/chartmann/.rvm/rubies/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
    from /Users/chartmann/.rvm/rubies/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor.rb:359:in `dispatch'
    from /Users/chartmann/.rvm/rubies/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
    from bin/inspec:184:in `<main>'

[srenatus]

Duplicate #408.