Fixed yanking and deleting using marks ma "ay'a

Fixed yanking with e (ye) Fixed ce followed by .
Initial implementation for mark updates (marks should stay on the same line after adding/deleting lines)
Fixed yank with Y
Added fakevim tests for yanking using marks and yanking using Y.
Fixed yanking with marks when a mark was set to a blank line.
Combined yy and Y to use the same yanking method.

Merge-request: 1314
Reviewed-by: hjk <qtc-committer@nokia.com>