update doxygen config file for newer doxygen version, tweak version number and tagfiles to reflect newer versions of xtuple erp and qt
Merge pull request #368 from gilmoskowitz/doxygen440

4.4.0 programmer ref
Issue #24002:backport fix for 24002, 24003, 23992 to 4_4_x branch
Merge pull request #399 from garyhgohoos/24002-44x

Issue #24002:backport fix for 24002, 24003, 23992 to 4_4_x branch
update version to 4.4.2
Merge pull request #402 from gpazo/bump442

update version to 4.4.2
merge
Merge pull request #404 from shackbarth/merge44

Merge from 4.4.2