Added Windows install description
"Python Packaging Tools". To Be Completed at a later time. Renamed "Installing from PyPI (recommended)" section to "Installing using pip (recommended) or easy_install". Added note that pip will install both Selenium2Libraries and dependencies. Also note that Windows users using easy_install need to install dependecies.
…ocumentation, BUILD.rst. Under the installation doc, added alternative "Installing from PyPI" section titles with addition section titles for various OSes. Added section on verifying proper instalation and troubleshoutting section. Also added stubs for documenting/educating end users on the various different "flavors" of python and the various packaging tools, including pip, easy_install, and buildout that the Python community uses. Under the developer documentation, added section stubs for virtualenv, debugging Selenium2Library, and profiling. Added information on how to write tests for selenium in order to discern whre issues lie, whether within Selenium2Library or elsewhere.
…pip in install documentation