remove section in test design conderations chapter on using RC asserts/verifies tradeoffs.

update some of the code examples to WebDriver (still more to do there).

Fixes Issue #6824
punctuation change

Fixes Issue #6828
spelling mistake

Fixes Issue #6831
escaping #, which breaks docs running locally
update Python usage examples to use copy() to avoid altering the static version of the desired capabilities object.

Fixes Issue #6486
Signed-off-by: Luke Inman-Semerau <luke.semerau@gmail.com>
Merge branch 'upstream/master'