RCP: 0.7.6, the check and update R packages command hangs under operating systems using proxy connection

The check and update R packages command hangs under operating systems using proxy connection.
TXM commands using R functions are not available after hanging.
We may need to start R with this argument: —internet2,
using native operating system configuration, or implement a time out.

We now fully manage the proxy configuration, see #868

Validation tests

Devs must update a package on cran, e.g. : “textometry”

• run TXM on a proxy system
• call the “File\Check R packages” command
  =>console output must be:

TBD

(from redmine: issue id 857, created on 2014/06/12 by Sebastien Jacquot)

• Relations:
  • relates #868 (closed)