Closes https://github.com/CocoaPods/Rainforest/issues/4

Dont allow pod names that begin with a `.`

* 'master' of https://github.com/andreamazz/CocoaPods:
  Removed useless comment
  Added spec and updated CHANGELOG
  Trimmed line length
  Fixed indentation
  Pod update displays the previous version of a pod

Conflicts:
	CHANGELOG.md

Fixes problem in CocoaPods/Specs#10341

Feature allow homepage redirects

Conflicts:
	lib/cocoapods/validator.rb

Adding pull request for #2026

Adding pull request for #2026

Usage:

    $ pod lib create NAME [TEMPLATE_URL]

      Creates a scaffold for the development of a new Pod according to the CocoaPods best practices.
      If a `TEMPLATE_URL`, pointing to a git repo containing a compatible template, is specified, it will be used in place of the default one.

Options:

    --silent    Show nothing
    --version   Show the version of CocoaPods
    --verbose   Show more debugging information
    --help      Show help banner of specified command to create a pod that begins with a period