v0.18.15-ivs-3

This fixes opencv sha1

20170910

update opencv sha1

ivs_20170920

Merge remote-tracking branch 'official/master' into ivs_mergeofficial…

v0.18.15-ivs-2

Update hunter version : This release is based on hunter official tag v0.18.15 and adds patches against msvc warnings for opencv, boost, and gtest. It also updates boost to 1.64.0-patchivs

ivs-v0.18.15

Update hunter version : This release is based on the tag v0.18.15 and adds patches against msvc warnings for opencv, boost, and gtest