Updating Wedo 2.0 Extension

[kaschm]

From the March 23, 2016 editor design meeting:

• Add "all motors" to the current {motor, motor A, motor B} drop-down menus.
• Change "seconds" to "secs" for localization and consistency with the rest of Scratch.
• The tilt-related blocks should be as follows:
  • when tilted {any, up, down, left, right}
  • tilted {up, down, left, right, any}? => Boolean value
  • tilt angle {up, down, left, right} => angle in degrees; up = -down, left = -right
• When adding and altering the blocks (especially reporters), make sure the order is consistent with other categories in the block palette.

[cwillisf]

This discussion came up in part due to #1040 and #1042

[cpseager]

Thank you.