FakeVim: Added Vim commands "gj" and "gk"

Change-Id: I1d38f86a1993f4aa82eb5dbf4595af69e062c0e1
Reviewed-by: hjk <hjk121@nokiamail.com>
FakeVim: Added Vim commands "g0", "g^" and "g$"

Change-Id: I05958e56282f0b290feb7e8e01d30b77f566d11b
Reviewed-by: hjk <hjk121@nokiamail.com>
FakeVim: Command % jumps to first known parenthesis character

Change-Id: I28988925f397af8c4927c416774d7fe21e982dcb
Reviewed-by: hjk <hjk121@nokiamail.com>