Add 3D Printed case info

Update copyright years in About dialogs.

Merge pull request #81 from simoninns/wip-032019

Wip 032019

Update to linux application .gitignore to ignore files generate by co…

…mmand-line build

Fix to reset glitch in FIFO code

Merge pull request #26 from simoninns/baby-herman

Baby herman

Merge pull request #23 from simoninns/duplicator-3-dev

Duplicator 3 dev

Merge pull request #18 from simoninns/jessica-rabbit

Jessica rabbit

Changed R3 and R4 to 1K2 to simplify BoM

R3 and R4 were 1K62 resistors; changed to 1K2 as the value is more common (and used elsewhere in the design) meaning less resistor values are needed to construct.

Merge pull request #8 from simoninns/rogerrabbit2

Rogerrabbit2