Sandbox Plugin - cleanup
Merge pull request #205 from EuanMead/dev

Numerous Improvements & Tweaks
Monstra Dashboard - Plugin Skeleton #204
UI Improvements - Admin - Updates #194
UI Improvements - Admin - Cleanup #194
Core: Javascript may be broken if there is no break line - fixed
HubSpot Messaging Library #195
Merge pull request #1 from Awilum/dev

Dev