Issue 1379 - Update to nginx 1.6.2

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extra : amend_source : 2289e24132b582b9aa05c99a9ed49306b8b006cf
extra : histedit_source : 92efbbc2839f85d0cb5dca891696ef7ea32a4fcf
Issue 402 - Use a redirector script for downloads, not a direct link

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extra : rebase_source : 26e8d2b0f45490181c0c557a3aea0b7d82db61b3
extra : histedit_source : 3bff9c15facc9f999068991f7675355de883a8e0
Issue 402 - Fixed typo in a setting
Issue 1389 - Discourse: Don't run queries for site settings if the correct value is already set

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extra : rebase_source : 888c3e1c6ad5b16261b036c273f9e8009b106bbb
1369 - Integrate ensure_depdendencies.py script
Issue 1374 - Don't hardcode web handlers for multiplexer

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extra : rebase_source : dbe5bbd057b754d2e0e74203515d268522e335e4
Noissue - Update server: Fixed wrong option names in sitescripts.ini file
Merge branch 'upstream'
Travis - Create minimal config for travis-ci.org