GitLab

Conflicts:
	browser/css/dark.css
	browser/css/light.css
	browser/css/vidjil.less
	browser/js/builder.js

When removing systems one by one (or when going through 'only TRG' -> 'none' -> 'only IGH'),
one does not want that all systems suddenly appear.

-color
-enable/disable data

- auto select scale (linear/log)

- fix css
- debug color by V/J

-change some css
-add

Sentences language depend on the user's locale. It may be english, french, czech, ...

istream initializes the buffer buf while gzstreambase constructor opens the file and
may set some flags (in case the file can't be opened). If istream is called last
it will overwrite the flags that have been set

Now Vidjil may load .gz files.

Even if the CGI fails for an unknown reason we still have the content type, which should
satisty the web server

I thought mkstemp would do that by itself. While it may seem not very satistfactory to hardcode
the path, /tmp is POSIX.

pdf.js : debug default clone list for pdf > with multi-system the first 5 clone in the list can be unactive

See 183ad875.

This code was duplicated in 60a8bf4a.

This test was already working, but threw an exception, and the test coverage could be ignored.

germline_builder : continue to build germline even if the system is not referenced in germlines.data (or if the browser can't access to germlines.data)

Simplification of the code.

Closes bug tested by 14b16e9c.