closes #7830

This is normalized to "true" in the config after running bin/bundle, so
rerunning script/configure_bundler resets this back to 1 (which is the
same, but we don't need to change this back and forth every time).

closes #7719

Currently, git checks are performed on server start, even when outside a git
repository.

This commit verify the presence of a git repository (via `git status` exit
code), and perform checks only if it exists.

closes #7712

Fixes #5267

closes #7685

closes #7654

They were added a long time ago and they talk about rails 3 ... we have
rails 5 now and scripts in the bin folder, so I think we can remove
them.

closes #7596

When `public/assets/` is a symlink, running `find public/assets ...`
does not return the correct result. By using `public/assets/`, find is
able to return the correct result regardless of whether the folder is an
actual folder or a symlink.

[ci skip]

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.