DOCS-685 migrate padding factor wiki page
DOCS-685 incorporate ed and dan's comments
DOCS-685 power of 2 in faq padding
DOCS-685 add powersof2 sentence from Dan
DOCS-953: text index release notes.
DOCS-953: examples for the release notes
DOCS-953 minor fixes
DOCS-929: corrections to introduction from discussion with paul
DOCS-929 edits to release notes for text search
merge: DOCS-685
merge: text indexes additions
Update source/reference/glossary.txt

Changed exit to exist in description for collection reference.
merge: typo fix