sync one last time on close of pager

license change to BSD

NGet correction, should continue gathering keys not stop once get not…

… wanted it found

update read me

more minor tests clean up

GreaterThanEq, LessThanEq functions tests

Analyze method and page count of btree to determine potential io of f…

…ull scan

NRange() function implementation and tests

new functions tests

package clean up