python switch_to now an object that is recommended

Fixes Issue #7294
simon's a xoogler
Indicate that Sphinx can be installed via pip or easy_install
checking to see how long it takes for this to go live
disclaimer about 3rd party downloads/projects; some 3rd party licenses cleanup thanks to Tony Sebro
sponsorship cleanup
updated ecosystem content
temporary thanks to Sauce while we figure out new sponsorship arrangement
minor wording improvement
bumping versions for 2.42 release
updating downloads page for 2.42.1
Adding Qualitia
Web Performance sponsor
a bit more relaxed logo requirements, since the 160x80 is a bit sad looking on our sponsors page anyway
tracking sponsorship start date
moving the smaller list of Selenium-centric products up top. The consulting list is going to be so long it shouldn't be the first thing people see
updating downloads links for 2.42.2 (java only)
updating 'previous releases' link
adding webperformance link to ecosystem page

Fixes Issue #7438
Adding a link to Selenium2.Ru to the ecosystem page