[MOS-973] Fix for a ghost call after quick click back key to end a call

Fixed a scenario where the user click to make a call to some contact and
then quickly click BACK (right function button) to end the call and despite
that Pure was still calling without showing any information.
This fix prevent to handle key press event as a key longpress even after
application lose a focus, or change a state.

[MOS-982] Recognizing WCDMA network access method for 3G in GUI

Ditto

[CP-1938] UI issues when uploading multiple copies of a specific file

Fixed problem with badly calculating characters to show which cause a
problem with displaying text on UI.

[MOS-178] Add input mode displaying timeout

Added timeout for displaying selected input
mode - now it automatically disappears
after 3 seconds since last change was made.

[MOS-925] Fix redirection on BACK from sending message from Contact view

Fix for inconsistent redirection to message threads list when pressing
BACK from sending message from Contact view. Also proveded mechanizm
to help switching back to previous App, when some App call window
from another App.

[MOS-932] Minor ListViewEngine cleanup

Minor cleanup of ListViewEngine.cpp.

[MOS-932] Fix unneeded deep refresh in empty list

Fix of the issue that pressing up arrow in
empty list (e.g. notes, messages, alarms)
resulted in unnecessary deep refresh of
the screen, as the content didn't change.

[MOS-938] Allow Text control to scroll several lines at once

Ditto

[MOS-166] Unify grey color levels

Unified gray color levels used for texts
displayed in GUI.
Fixed issue with 'No calls yet.' text
not displaying.

[MOS-59] Change tethering text to icon in status bar

Changed text to icon, fixed behaviour with phone modes

[MOS-59] Fix weird behaviour of indicators on popups

Fixed phone mode indicators on popups

[MOS-199] Change unknown char glyph to match with design

Fix of the issue that glyph displayed as
a substitute for unsupported character
was different than the design suggested.

Additionally minor code cleanup.

[BH-1609] Fix resizing of format in TimeSetFmtSpinner

Change the resizing logic of the children of TimeSetFmtSpinner.
Remove arguments of TimeSetFmtSpinner and BellStatusClock ctors.

[MOS-172] Fix asterisk button behavior in contacts

Fix of the improper asterisk button behavior
in new contact window - pressing the button
to change an input mode resulted in
'OPTIONS' label being displayed for the
left function button in navbar when the
asterisk button was held.

[MOS-361] Fix improper fonts in navbar

Fix of the issue that navbar fonts for the
left and right function buttons were bold,
what was inconsistent with the design.

[MOS-592] Fix right arrow behavior in search field

Fix of the issue that clicking right arrow
in search field caused the focus to be moved
to image on the right, what made inputting
text impossible.
Additionally minor code cleanup.

[MOS-18] Fix calllog scrollbar

Fix of the issue that scrollbar in
call log didn't represent the actual
page being shown correctly.

[MOS-757] Fix wrong cursor final position after deleting

Fix of the issue that after partially deleting
the text, the cursor sometimes was positioned
somewhere in the middle of the remaining text,
not at the beginning where it should.

[MOS-828] Fix 'j' glyph issue in Contacts app

Fix of the issue that email, first name and last
name fields were not able to display strings that
started with 'j'. Nothing was shown in such case.

[MOS-757] Fixed backspace behavior

Now backspace (held # button) removes everything from
beginning up to the cursor

Coauthored with @Lefucjusz