Add nginx configuration to work with websockets

Fix #213
Merge pull request #214 from iurisilvio/patch-1

Add nginx configuration to work with websockets
Add iurisilvio to authors file

Ref #214
Merge pull request #215 from iurisilvio/patch-2

Add iurisilvio to authors file
Fix /api/tasks #177
Rename /api/tasks arguments
Document /api/tasks method
Merge branch 'master' of github.com:mher/flower
Update documentation url
Fix the default db name in docs
Detect broker errors earlier
Add man page. (Closes #197)
Merge pull request #222 from bdrung/manpage

Add man page. (Closes #197)
Add -A tasks option in all command examples, to avoid confusion

Signed-off-by: Balthazar Rouberol <balthazar.rouberol@mapado.com>
Replace the '-A tasks' option by '-A proj'

As asked in https://github.com/mher/flower/pull/223#issuecomment-43326871
Signed-off-by: Balthazar Rouberol <balthazar.rouberol@mapado.com>
Merge pull request #223 from brouberol/master

Add -A tasks option in all command examples, to avoid confusion
Wording
Fix screenshot sizes in readme
Fix links
Added myself to the AUTHORS file

Signed-off-by: Balthazar Rouberol <balthazar.rouberol@mapado.com>