Moved 'Read Sorting' instance to 'Network/Reddit.hs'
Relax dependencies to work with ghc-7.6.3

Relaxed dependencies for base and bytestring packages, for ghc-7.6 compatibility. bytestring-0.10.0.2 and base-4.6.0.1 are bundled with ghc-7.6.3. A `tested-with` field has also been added.
Fixed identation
Completely rewrote contex load functions. Now they are much more
readable and expandable.