[FFe] merge usb-modeswitch 2.1.1+repack0-1 from Debian unstable

The usb-modeswitch package that we have currently in Ubuntu 14.04 is totally outdated - ver 1.2.3 is 2 years ago (not updated since 12.10 !!!).
7 releases have been pushed since then and added new features and bugfixes.
I therefore ask to sync 2.1.0 from Debian testing or sid - there are no bugs reported against usb-modeswitch in Debian and there is lots of bugs in current Ubuntu package :(

I suggest simply sync package from Debian and drop all Ubuntu-specific patches, because usb-modeswitch has build-deps only on jimsh and libjim-dev from jimtcl source in universe.
I think it's easier to include jimtcl package (written in plain C) to main archive instead of maintaining own implementation of usb_modeswitch_dispatcher.
Also new usb-modeswitch 2.x has upstart and systemd integration!

Here is debian/changelog since current Ubuntu release:

usb-modeswitch (2.1.0+repack0-1) unstable; urgency=medium
  * New 2.1.0 upstream release
    - -I flag meaning reversed, default is to skip SCSI inquiry
  * Repack the upstream tarball:
    - Drop the code copy of jimtcl.
  * Bump usb-modeswitch-data depends to 20140129
  * Bump Standards-Version to 3.9.5 without changes needed
  * Add get-orig-source target to do the automatic repacking
 -- Didier Raboud <email address hidden> Mon, 10 Feb 2014 12:58:03 +0100

usb-modeswitch (2.0.1+repack0-2) unstable; urgency=low
  * Update the systemd patch to change the systemctl path to fit
    Debian's (Closes: #725394) - thanks to Ralf Jung
 -- Didier Raboud <email address hidden> Mon, 30 Sep 2013 10:57:27 +0200

usb-modeswitch (2.0.1+repack0-1) unstable; urgency=low
  * New 2.0.1 upstream release
    - Switched to libusb1.0
    - Major code and debug output cleanup
    - Man page corrections and additions
    - Experimental systemd and upstart integration
  * Repack the upstream tarball:
    - Drop the code copy of jimtcl.
  * Refresh patches for 2.0.1
  * Update Build-Depends to add libusb-1.0-0-dev and pkg-config
  * Incorporate support for upstart and systemd
    - patch the dispatcher to correctly check if upstart or systemd are running
    - install the upstart init file and the systemd service file
 -- Didier Raboud <email address hidden> Wed, 18 Sep 2013 19:53:11 +0200

usb-modeswitch (1.2.6+repack0-1) unstable; urgency=low
  * New 1.2.6 upstream release
    - Several changes to streamline compiling as part of larger
      projects, mostly in Makefile;
    - fix compiler warnings appearing in certain build environments;
    - new Quanta procedure for Quanta 1K3 LTE;
    - fix for error with cascaded hubs in dispatcher script.
  * Repack the upstream tarball:
    - Drop the code copy of jimtcl.
  * Replace 04_cope_with_repack patch by one to to use the
    package-provided jimsh and libjim.
  * Bump usb-modeswitch-data depends to 20130607.
 -- Didier Raboud <email address hidden> Sat, 08 Jun 2013 18:07:17 +0200

usb-modeswitch (1.2.5+repack0-2) unstable; urgency=low
  * Upload to unstable.
 -- Didier Raboud <email address hidden> Mon, 06 May 2013 17:36:17 +0200

usb-modeswitch (1.2.5+repack0-1) experimental; urgency=low
  * New 1.2.5 upstream release
    - Initial support for MBIM devices, use with data package >= 20121109;
    - checking for these is the automatic default, new parameter
      NoMBIMCheck prevents the check per device in case of problems; new
      global option to set "delay_use" of usb-storage (as low values may
      prevent mode-switching);
    - fix for handling multi-configuration devices (thanks to Bjørn Mork
      for advice).
  * Repack the upstream tarball:
    - Drop the code copy of jimtcl.
  * Bump usb-modeswitch-data depends to 20121109.
  * Bump Standards-Version to 3.9.4 and debhelper B-D to 9 without
    changes needed.
 -- Didier Raboud <email address hidden> Tue, 20 Nov 2012 10:45:07 +0100

usb-modeswitch (1.2.4+repack0-1) experimental; urgency=low
  * New 1.2.4 upstream release
    - Additional interface checks to prevent sending UFI commands to
      non-storage interfaces (prompted by more ambiguous device IDs
      popping up);
    - Change in SierraMode for handling newer devices which caused an
      error abort before;
    - Makefile fix for parallelized make runs.
  * Repack the upstream tarball:
    - Drop the code copy of jimtcl.
  * Drop patch to disable logging as was (temporarily) enabled in 1.2.3.
  * Refresh patches.
 -- Didier Raboud <email address hidden> Tue, 28 Aug 2012 11:13:00 +0200