packagegroup-webos-ports-development: Add qtwebengine plugins and examples

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
webos-preferred-versions.inc: Use qt5 5.4.0+git%

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
README: update to depend on master branches

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
opkg: Rename .bbappend to match new version from oe-core

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
connman: Rename .bbappend to match new version from oe-core

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>