Issue #2585173 by Wim Leers, Jelle_S, DuaelFr, nod_, Reinmar, attiks: [regression] "Allowed HTML tags" setting corrupted upon accessing Text Format configuration UI

Issue #2510380 by Wim Leers, DuaelFr, mlewand, quicksketch, Reinmar, oleq: Images cannot be linked in CKEditor

Revert "Issue #2510380 by Wim Leers, DuaelFr, mlewand, quicksketch, Reinmar, oleq: Images cannot be linked in CKEditor"

This reverts commit 2d342c0f.

Issue #2510380 by Wim Leers, DuaelFr, mlewand, quicksketch, Reinmar, oleq: Images cannot be linked in CKEditor

Issue #2548195 by nod_, JohnAlbin, madhavvyas, sriharsha.uppuluri: Only use single quotes in JavaScript and update .eslintrc

Issue #2579979 by Jelle_S, attiks, nod_, Wim Leers: Allow contrib to alter EditorImageDialog/EditorImageDialog and have custom attributes be stored

Issue #2563505 by javivf, adooo, Wim Leers, Truptti, DuaelFr, Reinmar, quicksketch, FMB: "Enter caption here" text missing due to auto-created <br>

Issue #2510138 by Wim Leers, droplet, Kingdutch, nod_: Unidirectional editor configuration -> filter settings syncing breaks when button name does not equal the command name

Issue #2350327 by PieterDC, Dave Reid: editor.module should use the same data- attributes as entity_embed.module uses

Issue #2239413 by Wim Leers, blueminds: Split FilterCaption into FilterAlign (for data-align) and FilterCaption (for data-caption).

Issue #1913510 by erich_s, jibran, scresante, nod_, mitron: Core Javascript Files Not Using Standard Indentation.

Issue #2027181 by Wim Leers, seutje, Bojhan: Use a CKEditor Widget to create a stellar UX for captioning and aligning images.