Scheduling release of 5.5.0 for 20.02

Hi KDevelop contributors, late Happy New Year once more,

having flushed out 5.4.6 yesterday, the little time it took me to do this 
given experience & scripts, seeing how many commits have piled up in the 
master branch since 5.4 was branched almost 6 months ago and seeing that no-
one has yet actively taken the role of being the new release manager, I hereby 
offer/propose to have myself do kick off a new branch 5.5 in the next weeks 
still. This delays a bit my previous plans to step back now, but not 
completely though, getting 5.5.0 out would be my last contribution here.

So my idea would be: branch off 5.5 later in January, release first in 
February, and no further 5.4 version (unless grave bugs appear). 


Proposed schedule:

Sunday, January 19th (CET evening):
* branch off 5.5 from master
* string freeze in 5.5 branch

Monday, January 20th:
* 5.5 Beta 1 release

Monday, February 3rd  (2 weeks after Beta 1):
* 5.5.0 release, unless release blockers found

5.5.1 & ff. then will need you as new release manager finally.

If I hear no objections until proposed branching day, I would execute this 
plan :)


Anyone having stuff which should end up in 5.5, please peek & poke your 
KDevelop peers to get things reviewed & in. Everyone also please see the 
currently open review requests for if you can give feedback by reviewing the 
code & testing:
https://invent.kde.org/kde/kdevelop/merge_requests
https://invent.kde.org/kde/kdev-python/merge_requests
https://phabricator.kde.org/tag/kdevelop/ (reviews)

Sorry, no time/energy myself to do review work, as before.

Cheers
Friedrich