Merge tag 'v5.0.15-beta' of https://github.com/Jermolene/TiddlyWiki5

Version number update for 5.0.15-beta
Merge branch 'master' of https://github.com/Jermolene/TiddlyWiki5
Merge branch 'master' of https://github.com/Jermolene/TiddlyWiki5
Merge branch 'master' of https://github.com/Jermolene/TiddlyWiki5
Merge branch 'master' of https://github.com/Jermolene/TiddlyWiki5
Merge branch 'master' of https://github.com/Jermolene/TiddlyWiki5
Merge branch 'master' of https://github.com/pmario/TiddlyWiki5
Merge branch 'master' of https://github.com/Jermolene/TiddlyWiki5
Merge branch 'master' of https://github.com/Jermolene/TiddlyWiki5
cover the typeselector in a div-element, because the p-element has unwanted margins
Merge pull request #784 from pmario/fix-type-selector

Fix type selector