updated .travis.yml with permissions corrections
updated .travis.yml with permissions corrections (take two)
edited scripts to permit fine selection of branches/tags/commits
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updated .travis.yml
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Forcing headers: "Server:globaleaks", "X-Content-Type-Options:nosniff"
Forced header: "X-Download-Options:noopen" on Downloaded files
added some mitigation to information leakage on Browser/Proxy Cache
added mitigation to clickjacking attacks on iframes
Merge pull request #114 from globaleaks/security_enforcements

Security enforcements, bump to 0.2.0.20
Merge branch 'master' into feature/gpg-notification
extended -z option (devel mode)
used selective enabling of GPG notification/files