This fixes an issue, when the bin/ directory of diaspora is not in the PATH variable

closes #7281

This reverts commit 5fcc239d.

closes #7084

Fixes #6685. See https://github.com/kostya/eye/commit/866ecd0587387ed0bec3f6e19243c2ece38227cd

See the changes to the changelog for more details

closes #5966

fix sanity checks in script/server, remove migration check because it is too slow and Rails 4 checks it on first request anyway

Spring is the recommended application preloader for rails

If you try to connect from a secure connection
to a insecure connection; Most modern browser
block the request and flag it as mixed-content.

fixes #5254

Also relax the requirement. The .ruby-version represents
merely a recomendation for the Ruby version. The incompability
issues in the Ruby world are far less currently, than they were
when we introduced strict version enforcement. Thus strict
enforcement is no longer appropiate. Same holds for RubyGems.

This implicity also removes the recomendation on using RVM.
The .ruby-version file is supported by all major Ruby version
managers. Gemsets are no longer a needed feature since Bundler
handles multiple concurrrently installed Gems just well.

* It's broken for those that would benefit from it (postgres users)
* It's broken in the design: Reading it from the config requires bundle exec ruby, which requires it being set properly

Revert "bump recommended rubygems version"

This reverts commit e9526ee9.

See http://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/

the script is now split up in parts that will be fetched from github
on demand.
fixes #4047

* Made style consistent
* Add helper functions to print messages
* Abort script if critical command fails
* Made number of started Sidekiq workers configurable again