deleted oudated pde's
cleaning deprectad properties from line model
added line model migration
clenaning some commented code
fix when saving postit text updates
fixed bug when deleting lines created by another user
bugfix. Permitir postit sin texto
bugfix. Keep cursor style when dragging in canvas
automatic control of z-indexes of postits
refactored some of boardconnection.js to be simpler
fix focus when adding new postit