- api.turris.cz use certificate from internal autority
- api2.turris.cz does not exists
- (www.)turris.cz is just a public human-readable web presentation

The rmbt client failed to start when encryption was disabled. The
reason was passing empty string as a program argument.
The problem was fixed by modifying subprocess call.

An option that limits the max count of history logs from the control server
was added.

    - ping output added to console
    - file with saved history renamed
    - fallback control server changed
    - uci config formatting of times of automated runs changed

This optio prevents from running the test. It coul be used for
obtaining the sync code or downloading measurement history.

- Random file creation moved to tempfile.mkstemp()
- Some printouts typos correctios
- Option to disable colored output added

Synchronization code is now printed at the end of each test. The code is
either loaded from uci config file or - if missing - downloaded from the
control server. When uuid is chanded the sync code is automatically
flushed and prepared to be regenerated.
	The process is divided into two functions:
load_sync_code: checks the uci for the code
download_sync_code: download the code from the control server

Some minor changes were done:
	-uci set commands produce no explicit error messages from now on
	-new colored info printouts were added - these inform the user
	that some config is missing and is dowloaded or generated

A new option was added that allows the user to download history of
past speed measurements. These measurements would be stored in /tmp/

Option that allows the script to wait random amount of time up to N seconds
before the test starts added.

Otherwise it doesn't work on OpenWRT.

This script communicates with netmetr control server
and starts rmbt client with received parametres.