Fixed a bug in "Trickle" command. Pressing Enter to get default arrow size didn't work.
Fixed a bug in "Surface Cross-section" command. Cross-sections right and left axis offset was wrong when using other spacing than zero (Output settings)
Fixed a bug in "Annotate Cross-Section" Annotation didn't work with only one item in the list.
Added a "Check for updates" once a day when starting CadTools, if there is a update available CadTools will inform the user.
