Adds Proxy Support to KeybaseLib#4

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adithyaphilip wants to merge 8 commits intotimbray:masterfrom

open-keychain:proxy-support

Commits on Nov 19, 2014

Improve proofLabels to handle more than twitter/github and the only the first (!) listed site
timbray
committed

Commits on Nov 22, 2014

Add check of proof fingerprint vs key-being-verified fingerprint
timbray
committed

Commits on Dec 4, 2014

Update for Android Studio 1.0 RC
dschuermann
committed
Merge branch 'keybase-proofs' of https://github.com/open-keychain/KeybaseLib into keybase-proofs
dschuermann
committed

Commits on Mar 2, 2015

Use SDK and build tools versions from root project
dschuermann
committed

Commits on Jun 11, 2015

added proxy support
adithyaphilip
committed

Commits on Jun 16, 2015

code cleanup
adithyaphilip
committed

Commits on Jul 6, 2015

Ignore lint errors
dschuermann
committed