Fixed some mistakes in Help

(cherry picked from commit c470e82fbeb6dce7ca3345d7c01639d696cd7f3e)

Use PNG for customized Intro/About bitmaps

(cherry picked from commit 28495963be29a275c1ae00a216f3c4af943c9930)

Simplified URL for dictionaries on extensions.o.o

(cherry picked from commit 27e514ea4df6b4da0bdf0a15cc93ef53cd443f8c)

Cleaned up resource files

(cherry picked from commit de77cd1de9d6cd3f569c19926e790d30576a52b3)

Cleaned up resource file

(cherry picked from commit be37a4cb721df939292efeb157d4dc702545558e)

Placed full stop inside Help text

(cherry picked from commit e00e28f80fe6a16f4b170f212eb5adaaee2f0d79)

Cleaned up resource file

(cherry picked from commit 257a218158c7b0af626a3cef6c19c6ec72f13d5b)

Updated background graphics for macOS (Beta Build) - second try

(cherry picked from commit f936a9e4fe87a80243a1ba5f7cc0385ed7520c1a)

Updated background graphics for macOS (Beta Build)

(cherry picked from commit 3009dd65a7740ff94560aee5bd7cf0c0499b6224)

Add background graphic for macOS (Dev Build)

(cherry picked from commit b9f6cb580bb39b401a5edc359b3df8057a611693)

Cleaned up resource file, fixes strings

(cherry picked from commit 4c3db3b63df8cae205890d1284d28fef5de807a3)

Updated Danish dictionary (now incl. synonyms)

(cherry picked from commit eced20b2ade9d5c304e001904b2a411d2d9773d0)

Updated English dictionary

(cherry picked from commit d05d91a9d0241aff560a3f1043fb4d34e26c2d9e)

Add ignore for OS/2

(cherry picked from commit f8ebc5ea4a3ab169627d832d9f3f41a1e8e9b219)

Add extended tip for floating frame dialog

(cherry picked from commit 877f0516dda70e06d10e6d41d825853b7d295647)

Bump up since these numbers are now in use by AOO420-Dev-m2

Cleaned up resource file, decreased height

(cherry picked from commit ea9e98079ebedeb2f43d610fd451b496aa13689e)

Make zoom slider (scale factor) in Calc page preview flat

(cherry picked from commit 890e1aae92944858af89bcc74af15d9649fc0af3)

Removed check for GNU make 4.3

(cherry picked from commit cc6648e8b0b7b3b5d3b501531fab06dfe8218847)

Fixed spaces in Help

(cherry picked from commit 2939f6b03f0d7a9dcc6fe76c981877e2b909a84b)

Simplified URL for extensions.o.o

(cherry picked from commit 21aecffa9be0733c0f71d7275a0d4fe4e75d1063)

Renamed master slide

(cherry picked from commit c76e35aed8642240cc44e4a863c8b0dd88919aad)

Fixed .uno:Subtract -> .uno:Substract

(cherry picked from commit 104eb0f1dd478fb54611ae6b912919c3c74484e1)

Fixed typo in Polish template, removed metadata from German template

(cherry picked from commit 58fe32b7994b84e6226e52646705c53d724b1a5c)

Fixed typo, removed whitespace

(cherry picked from commit 376a13c507bf49893f85a824c8a8d3195fcbd525)