Fixed typo
Fixed typo
Fixed typo
Added s.start and v.start to Initialization group

Thus it is consistent with Revolute
Move position of param animation

Make it consistent with Prismatic
Merge pull request #17 from tbeu/patch-2

Fixed typos
Merge pull request #18 from tbeu/patch-3

Added s.start and v.start to Initialization group
Merge pull request #19 from tbeu/patch-4

Move position of param animation