Add whitespaces between parenthesis and names.

It's a really stupid mistake. I'm sorry.

Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
Merge pull request #8 from omasanori/license-fix

Add whitespaces between parenthesis and lisence names.
Merge ebuilds to reduce maintenance costs.

Currently rust-0.8.ebuild and rust-9999.ebuild have some minor
differences. After this change, you'll modify rust-9999.ebuild to fix
build problems in master as usual, and then all you need to support a
new release is just `cp rust-9999.ebuild rust-x.y.ebuild; <edit KEYWORDS
in rust-x.y.ebuild>`.

I don't know why you've avoided using econf, so I left the line
"${ECONF_SOURCE:-.}"/configure.

Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>