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adridg
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svn:date
V 27
2020-06-05T10:21:16.890082Z
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V 200
devel/liteide: Qt 5.15 housekeeping

- add includes because Qt 5.15 drops some implicitly included ones
- remove bundled copy of old QJson library -- use the system one

PR:		246992
Approved by:	dmgk

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