*6582* Override getCurrentVersion() on Custom Block Plugin to prevent the upgrade and delete management verbs for a subsidiary plugin
*8864* Updating ToC fix.
*8889* Fixed editor's sort reverse order
Merge remote-tracking branch 'official/ojs-stable-2_4' into ojs-stable-2_4-8864
*8864* Updating ToC fix.
Merge pull request #287 from FourthAndVine/ojs-stable-2_4-8864

*8864* Updating ToC fix.
*8864* Indentation fixes
(whitespace)
Merge pull request #258 from ulsdevteam/set-versionless-custom-block-plugin

*6582* Override getCurrentVersion() on Custom Block Plugin
Submodule update
Merge remote-tracking branch 'upstream/ojs-stable-2_4' into ojs-stable-2_4
Submodule update