dsl (git): Made GitUtilsTest more robust
core (jobs): rename existing "task" code to "job"
wip: task mechanism
ui (tasks): display start and end dates, durations
server (tasks): Task log
core,util (tasks): Made task logging transparent
wip: server - websockets
server (tasks): basic task completion
core/util/server (tasks): error handling, stack traces
builder: add TaskService to fix build
server (tasks): add icons, table colors
server (tasks): use TaskService for container task invocations
server (tasks): use TaskService for host task invocations
ui (tasks): let TaskService handle success notifications
ui (tasks): fixed host table, added task highlighting
ui (tasks): reconnect websocket