lower the default number of clients for restore and import (for users with small amounts of RAM)
fixing crash on non-deterministic filter default value
changing wrong serializer version message to be more helpful
changing import/export to check for rethinkdb python client using pkg_resources rather than calling 'pip show'
removing help_pager_t, help output is now written directly, also fixed rethinkdb admin --help not working
Handle Dates as primary key - Related to #1335
Fix bootstrap -- In Firefox, SVGRectElements don't have a offsetWidth/offsetHeight property -- Related to #1314
NOTES for 1.8.x
Update NOTES
Merge v1.8.1 into next