Refactoring; Ensure SW 5.2 compatibility

2.0.0

Merge pull request #24 in PLUG_OPEN/frontend_swagcustomsort from hack…

1.0.4

1.0.4

1.0.3

PT-4076 - implement update method to prevent calling of install metho…

1.0.2

PT-3998 - prepare plugin.json for store update

1.0.1

PT-3324: prepared plugin.json for store update

1.0.0

PT-2775: code clean up; prepare plugin.json for store update