DOC: Some more details in installation instructions.
DOC: Formulation.
DOC: Be little less gushing.
DOC: we don't need dual targets. Caps taken care by the Sphinx.
DOC: Suggest using .exe installers instead.
DOC: Link to easy_install.
DOC: Fixes following comments from Stefan.
DOC: replaced Canopy with Anaconda in installation instructions
Merge pull request #305 from arokem/installation-instructions

DOC: Some more details in installation instructions.