Fix sample bundle - "apikey" & some setup scripts

Commit 1: [0d764b4]
1. The Validate ConsumerKey flow should use the "VerifyAPIKey" policy instead of "GetOAuthV1Info" policy. 
2. This Change requires change in the flow variables referred in the RateLimit policy - "CheckQuota". Fixed that also.
3. Removed the "ClassifyRequest" policy, which is setting the "flow.resource.name" with the "proxy.pathsuffix". When the ApiProduct is configured either with the Proxies or Environments or both, the flow.resource.name will be automatically set to "proxy.pathsuffix"

Commit 2: [8aa6660]
1. Add provision to get Proxy detail from user to use in the ApiProduct.
2. Add cleanup.sh 
3. Fix typos and file modes