note actual prerequisite of GCC, not Xcode/VS
Updates README to reflect Twitter being OAuth 1.0a

Twitter is OAuth 1.0a rather than OAuth2. This updates the README to reflect this.
Adds PayPal credentials for API configuration
Adds PayPal REST SDK to package.json
Adds PayPal routes for the SDK
Adds PayPal to the API browser
Update README.md

Typo
Adds PayPal logo for the API browser
Adds view for PayPal SDK sample
Adds PayPal SDK sample to the API controller
Adds PayPal howto
Merge pull request #9 from SeraphimSerapis/paypal-rest-sdk

PayPal REST SDK sample
Merge pull request #7 from rissem/patch-1

Update README.md
Merge branch 'qubyte-patch-1'

* qubyte-patch-1:
  Updates README to reflect Twitter being OAuth 1.0a

Conflicts:
	README.md
Merge pull request #4 from ceejayoz/patch-1

note actual prerequisite of GCC, not Xcode/VS
Update README.md

Added horizontal rulers between API Key intstructions and updated pre-requisites section
Remove unused 'fs' module
Enable express.compress() middleware for "gzipping" content
Directory renaming can be skipped

`git clone` already takes a directory name as an argument
Static content caching