Define proper multi-line format

[chinyeungli]

Our muli-line template (next line with a space) is no longer valid.

In the YAML format:
basically either:
desc: |
someline
other line and lines will be preserved (edited)

Or this:
desc: >
This text will be folded as a single line
with this second line (edited)

http://stackoverflow.com/questions/6734955/jekyll-liquid-how-to-add-large-blocks-of-text-to-yaml-front-matter
http://learnxinyminutes.com/docs/yaml/

we may want to be consistence even thou the spec provide us options for this :simple_smile:

[chinyeungli]

The tool should support both format. However, for the ABOUT file generation, I tend to use the '|' as it will keep the format as is. Note that if we use the '>', next time when yaml parse the ABOUT file, it will replace all the newline characters to space which "break" the original format.

@pombredanne agree?

[chinyeungli]

We are using | for multi-line format.