[BH-1412] Fix system shutdown procedure

Changed startup services order.
Prevent handling multiple "close ready" messages from one service while closing
system.
Introduced a new state in ServiceGUI.
Fixed a problem with turning on Harmony with a connected USB cable.

[BH-1745] Fix a deep press crash during popups

Rewrite the popups filter to remove unnecessary popups.
Remove callbacks from activate and deactivate popups
which cause problems when the popups was on the stack.

[MOS-1013] Fix missing audio files in simulator after rebuilding image

Fix of the issue that rebuilding simulator
image after multimedia files have been
indexed resulted in no files visible in
Music Player app.

[MOS-1007] Fix for add/update contact with 2 same phone numbers

There was possibility to add contact, or edit some contact, with have
2 same phone numbers (exactly the same or witch/without country code).
Now this has been fixed and is not possible to create, even by editing, contact
with 2 exactly the same numbers or 2 same numbers and one of them with a country code

[MOS-1012] Fix occasional crash when unplugging Pure from PC

Fix of the unhandled error issue that resulted
in occasional device crash when disconnecting
from PC with MC app running.

[MOS-930] Fix for for misunderstanding holes in sms conversations

Not all messages can fit on the current screen in sms conversation windows,
so there may be some holes that might suggest that  there are no more messages
to display. Now, when therea are more SMS to see by scrolling up,
the Old Messages label will indicate this fact.

[MOS-1002] Change USSD code handling to match design

Fixed issues with GUI behaviour on failed
USSD code handling.
Minor code cleanup in several parts of system.

[BH-1412] Fix services dependencies

Changes in dependecy managment
Replacing state flags with states in ServiceGUI
Unifying some parts of code

[BH-1412] Improve system shutdown procedure

Changed default Worker join timeout to a more realistic value
 in case of system shutdown procedure.

[MOS-1009] Update changelog

Update changelog for MuditaOS 1.7.2.

[BH-1241] Fix the frontlight in pre-wake up

Disable the frontlight and chime when the
pre-wake up is off using deep press.

[BH-1714] Handling eink initialization errors

Added error detection while eink initialization.
Added mechanism to reinitialize the eink in case of error.

[BH-1728] Fix redundant clock face display while shutting down Harmony

When the user holds the back button for 10 seconds to display
the "turning off" prompt, we  show a redundant clock face display.

[BH-1729] Changed the "Turn off Harmony" popup display time to 10 seconds

When the user activates the prompt to turn off Harmony, it has been
displayed for more than 3 minutes.

[MOS-972] Fixed missing contact entries when scrolling phonebook

Fix of the issue that in some cases contact entry
would not be displayed on any page in case it
was on the boundary of two pages.

[BH-1720] Choose GDB binary based on python version

In this version of the run.sh script, the arm-none-eabi-gdb version will be chosen based on its
python support and the user will be notified if their version supports python 3 or not.

[BH-1733] Add Harmony version information

In the Settings->About section, we will have information
about which version of Harmony the user has.

co-author @Lefucjusz

[MOS-1005] Fix handsfree ringing after caller hangs up

* Fix of the issue that incoming call triggered
handsfree ringing which didn't stop after
calling side hung up.
* Cleanup of several places in code, minor
bluetooth <-> cellular integration refactor.

[MOS-1006] Fix modifying data in .text section when setting SN

Fix of the issue that setting serial number in
USB stack resulted in writing to read-only
.text section, what causes undefined behavior.

[BH-1714] Eink refactor and error handling

Cleanup and refactor for eink code.
Changed turning on/off procedure.
Add error handling.