fix range searchsorted methods
add percentile histogram test
integer range contains
Merge pull request #3139 from simonbyrne/sortrange

fix floating point problems in searchsorted methods for range objects
minor doc and export updates, ones() histogram test
Merge branch 'master' of github.com:JuliaLang/julia

Conflicts:
	test/statistics.jl
fix complex to negative integer power
use convert instead of int() in recent indexing fix
make Sort Ordering and Algorithm tokens instances instead of types
this eliminates many definitions and doesn't change typical uses at all
fix show() for TypeConstructor
added quadgk integration routine