Update testcase by removing tests depending on deprecated calls
Updated samples by removing calls to deprecated APIs
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Merge pull request #13 from paypal/fix-deprecated-testcase

Update testcase by removing tests depending on deprecated calls
Support Invoice APIs
Added javax.servlet dependency
formatted pom in sample project
added invoicing sample code
added invoicing sample requests
bumped up version to 0.8.0
Merge branch 'support-invoice-apis' into rel-0.8.0
Merge branch 'rel-0.8.0' into stable