Add changes file for Qt 5.12.1

+ d64e5900 Mapbox GL: Add mapboxgl.china plugin parameter
+ e11c830e Remove dead code
+ b0295ac4 Improve error reporting in plugin loading
+ ee700d2e Mapbox: Only include matching categories in the results
+ 25c6840f Bump version
+ 85df79b0 Fix unstable rotation gesture
+ cf5edf09 Doc: Make documented QML imports follow Qt versioning
+ b172080b Fix GeoProjectionWebMercator and MapPolyline incorrect projection
+ d9985cd5 Fix missing geometry update when changing border width
+ 5241d8c7 Do not build geoclue plugins on platforms != linux
+ 66ef8248 winrt: Fix msvc condition in configure tests
+ d94b6781 Fix MapItemView removing wrong indices on model changes
+ ffac0dc5 Add changes file for Qt 5.11.3
+ fb23882d Add QAbstractNavigator::setTrackPosition
+ cb19e1f7 Fix error handling in QGeoServiceProvider
+ a4cc61fc Improve the initialization behavior of CategoryModel
+ 27f08fe5 winrt: Minor code cleanup
+ 536668ae winrt: Fix setting of verticalAccuracy
+ c83f4565 winrt: Replace deprecated functions
+ 10e200d7 winrt: Make sure that Co(Un)Initialize is called
+ 98e28cfc winrt: Fix namespaced builds
+ 3cf061dc winrt: Add categorized logging
+ 3c8b439d winrt: Add nativeStatus helper functions
+ d16a2c08 winrt: Small code cleanup
+ 4f6e1d3d winrt: Check availability in requestAccess on desktop builds
+ 0b242a11 winrt: Remove unneeded status change callback
+ 25493cbb winrt: Restart location handler on setUpdateInterval if necessary
+ 9307404d winrt: Implement minimumUpdateInterval
+ be0658bf Make tiled renderer and QGeoProjectionWebMercator debuggable
+ b4beb74d Fix compilation with GCC < 5.0
+ 4e2847bc Fix regression in error handling in QGeoServiceProvider
+ 7bafbdc9 Fix compilation with gcc 4.8
+ cfb91794 Port Nokia geo service plugin to QRegularExpression
+ 74c390e1 Fix warning in Android position plugin
+ 3d38d96c Fix horizontal accuracy comparison for competing position results
+ faaa6521 Fix warnings in jnipositioning.cpp
+ fa56cc36 Ignore Android specific build files
+ 2bb003b7 Add ability to visually log position updates in test app
+ a4442abd Collect vertical position accurancy details
+ 4ab5838d Add binary compatibility file to QtLocation for 5.12
+ 550abd71 Enable QVariant::save for QGeoCoordinate
+ 100e0416 Register QGeoCoordinate debug streaming operator
+ 1e24cec7 Introduce a map plugin parameter to decide U-Turn direction
+ 04ce8e7f Fix QGeoPositionInfoSource::supportedPositioningMethods() on Android
+ 00db28fe Improve QGeoPositionInfoSource::supportedPositioningMethods() docs
+ 3c3be256 Ensure QGeoPositionInfoSource::supportedPositioningMethodsChanged() on Android
+ b14145e3 Prevent potential blockage of setPreferredPositioningMethods()
+ 42012833 Enable testing of QGeoPositionSourceInfo::supportedPositioningMethodsChanged()
+ 81a9c22e winrt: Minor improvements in error handling
+ b1fe421e Bump version
+ 1688c44d

 Fix MapItemView attempting to instantiate items with map not set

Change-Id: I4e06bc6aaace81b4409fe71a7e133838f30196f0
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>