Improve fix and improve spec for compiler_flags of subspecs. #364.
Update bundle for Xcodeproj.
Clean Rakefile a bit.
Update Xcodeproj dependency to 0.2.1
Release 0.6.1
[LocalPod] Support British spelling of license.
[Linter] Don't require a licence file for pods available under the `Public Domain`.
[Linter] Robustness against nil license.
[Push] Support for podspec argument.
[Spec#lint] Support remote podspecs.

Like `pod spec lint https://github.com/tibr/Specs/raw/123277fe658059c6efd5801aee1e504f55d488f6/Kiwi/1.1.0/Kiwi.podspec --verbose'
[Spec#lint] Fix.
Array#flatten! returns nil if no modifications were made (i.e., array contains no subarrays.)

We probably want just `flatten` rather than `flatten!`
Merge pull request #367 from Jaym3s/patch-1

Array#flatten! returns nil if no modifications were made
[Spec#lint] Added example of remote podspec argument.
[LocalPod] Expand paths in a case insensitive fashion.

Closes #346.
[Linter] Ignore xcodebuild macro note.
[Spec#create] Fine tuned template.
[Linter] Check if the license text is assigned to the license type.
[Linter] Don't require a license file if the text is specified.
[Linter] Improved detection of xcodebuild errors.