lttng-tools, lttng-modules: drop

oe-core switched from 1.4.0 to 1.5.0, which already has Wade's v4l2 probes
merged.

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
qt5: 5.2.1 -> 5.3.1

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Merge pull request #21 from MentorEmbedded/yocto1.7

Version updates for Yocto 1.7