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- build script has ability to indicate location for downloading uhd images
- one simple wrapper to set environment variables and initiate another program (supposed to be lte-softmodem)

This commit reverts behaviour of data generation as before
commit 7207c65b05fd812a18371827f2bfb1431fc58696:

    fix .ue* filenames in scripts and documentation

    TODO add option to conf2uedata and adapt script

TODO add option to conf2uedata and adapt script

Imad ALAWE authored Jul 26, 2016 and FredericLeroy committed Jan 25, 2017

This patch adds the conf2uedata tool for generating .ue.nvram* .ue.emm.nvram*
and .usim.nvram* files from a textual configuration file.

The configuration file define most usefull values like plmns, mnc, mcc, msin, K,
OPc for several users.
The files generated will always ends with a number corresponding to the user
entry in the configuration file.

This breaks oai5g because other script have not be updated for using
conf2uedata.
This breaks also the at_nas_ue command.

Examples of configuration files are in openair3/NAS/TOOLS/

init_nas_s1 may not work properly, but many people complain
about this file, so let's put it in the repository.

We'll fix it at some point if it's not properly usable.

The text has been updated in all those files.

	modified:   README.txt
	modified:   cmake_targets/CMakeLists.txt
	modified:   cmake_targets/at_commands/CMakeLists.txt
	modified:   cmake_targets/autotests/core.py
	modified:   cmake_targets/autotests/log.py
	modified:   cmake_targets/autotests/openair.py
	modified:   cmake_targets/autotests/run_exec_autotests.bash
	modified:   cmake_targets/autotests/run_exec_lte-softmodem_tests.py
	modified:   cmake_targets/autotests/tools/configure_cots_bandrich_ue.py
	modified:   cmake_targets/autotests/tools/configure_cots_huaweiE398_ue.py
	modified:   cmake_targets/autotests/tools/configure_usrpb210.py
	modified:   cmake_targets/autotests/tools/find_usb_path.bash
	modified:   cmake_targets/autotests/tools/free_mem.bash
	modified:   cmake_targets/autotests/tools/iperf3_script
	modified:   cmake_targets/autotests/tools/iperf3_script_phone
	modified:   cmake_targets/autotests/tools/iperf_script
	modified:   cmake_targets/aut...

changes for oaisim to function with new threading architecture and trx_read/trx_write emulation. Tested for 5/10 MHz TM1. Multiple-antenna mode fails.

the official asn1c repository at github posed problems to
some people in the past. It's better to have it locally
for such a critical piece of the software.

  - fix the run_enb_ue_virt_s1 script
  - change the Ki value back to the one used

  - fix the run_enb_ue_virt_s1 script
  - change the Ki value back to the one used

update nettle to new interface, update deadline scheduler option (doesnt compile without this), update build/install script to use regular nettle and gnutls in ubuntu 16.04 (should also be fine with 14.04 up-to-date), update init_exmimo2 for ubuntu 16.04)

adding two rules for run_enb_ue_virt_s1 script to resolve the issue of data path with simulated UE (contributed by A. Ksentini)

libxslt1-dev is used at least for asn1 and usrp. It breaks the build when in
check_install_additional_tools().
Move it to to check_install_oai_software()

uhd is not part of ubuntu standard repositories >= 14.04.
Move the removal of uhd in its own space and do not fail if it doesn't exists.