dev-haskell/dsp: new package

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
The haskell-mode screencast has been removed. Give a pointer to the docs.
Bump aeson to 0.6.2.1
Add libxml for test-framework
Bump yi-contrib to 0.7.0
Bump yi to 0.7.0
Bump chasingbottoms to 1.3.0.7
Bump optparse-applicative to 0.7.0.2
Bump tasty to 0.3.1
Bump test-framework-hunit to 0.3.0.1
Bump test-framework-quickcheck2 to 0.3.0.2
Bump test-framework to 0.8.0.3
Bump th-lift to 0.5.6
Loosen th-orphans dep in haskell-src-meta-0.6.0.4
Bump th-orphans to 0.8
Bump type-level-numbers to 0.1.1.1
Bump unix-time to 0.2.1