Adding support to change only the visual mapping.
Merge remote-tracking branch 'blackheaven/master'

add visual-mode only trigger key
dist.131008-91735da
Merge branch 'dist.131008-91735da' into dist
fix issue: :set indentkeys=0\,,0{
dist.131011-e933b6e
Merge branch 'dist.131011-e933b6e' into dist
fix bundle file name with underline
dist.131012-87b6657
Merge branch 'dist.131012-87b6657' into dist
fix .xpt comment syntax at bottom line
dist.131012-929705f
Merge branch 'dist.131012-929705f' into dist