fix connman bearer for new API.

back ported from qt5 sha 68db0c8567d20491aa5a34dc2ded6f6863e2152b

Change-Id: Ib9cdbb6e4bdfed8420cdc2364503445924c8c57c
Disable generic bearer plugin.

It isn't useful for us.
update ofono API

(Change-Id is Qt 5, Qt 4 upstream is where?)

Task-number: QTBUG-29381
Change-Id: I952b73d86b4e8f497b4ff90d10c1f5312882bd8a
Don't update the input method if the im hints haven't changed.

Depending on the implementation updating an input method can be
expensive and various widgets will at times call setInputMethodHints
with unchanged hints.  QGraphicsView being a notable offender due to
the complexity of the circumstances in which the hints can change.

Skipping the update here ensures the input method isn't updated
unnecessarily for all widgets.

Task-number: QTBUG-19854
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
(cherry picked from commit 40e6b1d0b8c1804dfb33032fa70b6604b91f6f90)

Change-Id: I36ae35585ee20a4e01ca0d62c71e896dbdb51a3f
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Fix TextInput test failures.

emitCursorPositionChanged won't emit cursorPositionChanged if the
cursor position hasn't changed but that doesn't mean the micro focus
hasn't changed, so emit updateMicroFocus changed when
cursorPositionChanged isn't.

Task-number: QTBUG-21017
Task-number: QTBUG-21011
Task-number: QTBUG-20719
Reviewed-by: Joona Petrell <joona.t.petrell@nokia.com>
(cherry picked from commit 6e0e834e0398192a6da11d1e1bca6b74769fb75d)

Change-Id: Ia0d244eea051f2a870a084742c4c22f5a45a87bc
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>