Bump from Velodyne version 1.1.2 (Nov 2013) to the latest release,
1.2.0 (Aug 2014).  This version includes a fix to support yaml-cpp
1.5+ so resolves #325 [1].

[1] https://github.com/bmwcarit/meta-ros/issues/325



Signed-off-by: Ash Charles <ashcharles@gmail.com>

The description is not indented after line breaks. All other
information, i.e., the dependencies and SRCURI, are indented with
four spaces after line breaks. Shell scripts are indented with
multiples of four spaces.

In recipes-ros, I located and checked for tabulators and spacing
with these bash commands:

egrep '^ [^ ]+' . --exclude *.patch -R
egrep '^  [^ ]+' . --exclude *.patch -R
egrep '^   [^ ]+' . --exclude *.patch -R
egrep '^    [ ]+[^ ]+' . --exclude *.patch -R

While going through the recipes and manually improving the layout,
I also adjusted the descriptions to use maximal 100 characters
per line.