UI for saving diagrams to database
fully working frontend User menu
backend cleanup
modified showGraph JSP to use JSTL and EL
reworked upload screen
Viewport minimap
(WIP) minimap may be dragged to move Viewport
viewport Minimap
Added save button
loading of saved diagrams
Vertex/Edge attribute rendering
dropped some unused functionality, merged DefaultPage with UploadFiles servlet
WIP: added filters
dropped unused functionality
fixed paths
rebranding
moved frontend code to directories following Maven convention, dropped libraries that are managed by Maven