WIP: qtcreator: update to 5.0.2.

[karl-nilsson]

Have the results of the proposed changes been tested?

• I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me

Does it build and run successfully?

(Please choose at least one native build and, if supported, at least one cross build. More are better.)

• I built this PR locally for my native architecture, (x64-glibc)

The start menu entry is missing, and the update file seems to be broken

ping @Chocimier

[Chocimier]

Thanks, did't knew about updates because update-check didn't catch it. Will push after some tests.