Update plugins, remove deprecated and build release intellij 213.+

Update and build release intellij 212.+

Fixed issues with metadata that contains multiple references

Fixed issue with property hints with any providers

Fixed issues with documentation for enum values + case sensitive enum…

… suggestions

Fixed issue with deprecated property/groups at higher levels shadowin…

…g valid suggestions deep inside

Fixed issue with property & group names. Now hiphens & underscores in…

… the names will be retained correctly

Fixed issue in per group dependency section. Deleting a selected now …

…retains the previously selected group

1. Fixed issue with property hint with just providers without any values

2. Added pnemonic focus support in the server selection & project details screen
3. Fixed issue in per group dependency section. Now search handles enable/disable dependencies correctly

1. Keyboard navigation within selected dependencies table now works p…

…roperly

2. Reorganized code