The original implementation made poor assumptions about the name of the
pod, and used it as a regex pattern. This led to problems when trying to
push specs that contained special characters in their names (such as `+`
for category specs). Instead of using a regex, we should just do a
substring match to see if the output contains the spec name.

Change STDIN to $stdin so it can be reassigned
Use UI.puts instead of print
Add test coverage for Spec#choose_from_array
Fix off by one issue in Spec#choose_from_array

Closes #1675

Add more test coverage for the spec cat command.

This fixes pod lib lint due to Pathname.relative_path_from assuming no
symlinks in path while /tmp is actually a symlink  to /private/tmp

Fix integration test link

Convert the `pod podfile_info` command to a plugin

This removes the podfile_info functionality from cocoapods.

The validation done by `pod spec lint` and `pod lib lint` commands
now checks that all subspecs build independently.

This new behavior can be disabled with `--no-subspecs`.

The validation of a single subspec can be done checked with `--subspec=NAME`.

Handle ARCHS coming back as an Array or String

added social media url to the template fixes #1648

Enhance pod lib lint to support multiple Spec files in the folder

Add regexp search capabilities to full text search and lower memory usage.

https://github.com/joyent/libuv/blob/master/CONTRIBUTING.md

Closes #1568

Fix `pod search` when the silent flag is enabled