docs; mention auth

closes #1406
docs; mention hooks/validation with findAndModify

closes #1407
added; mongos failover support

closes #1037
Revert "added; support for awaitdata query option"

This reverts commit 902038260da7b2f23d339a4ac9896da4040fa24b.

Will be 3.7
Revert "added; mongos failover support"

This reverts commit 76b10db1ce2c7542242a86aa25e139c5c8f094f1.

Will be in 3.7
fixed; populated streams

closes #1411
.travis
fixed; setting subdocuments deeply nested fields

closes #1394
update history
release 3.6.3
Merge branch '3.6.x' into gh-pages
website; regen for 3.6.3