F.A.Q.: How to download private GitHub asset

gflags: Add REGISTER_INSTALL_PREFIX=OFF by default

Docs: Cache repository should not be empty

Docs: Update "Binary cache server"

Merge pull request ruslo#1344 from headupinclouds/pr.FunctionalPlus

add FunctionalPlus v0.2

Add minizip v1.0.1-p3. Update example. (ruslo#1317)

Merge pull request ruslo#1342 from elucideye/pr.hunter_download.versi…

…on_not_found.placement

Fix location of version_not_found check

Merge pull request ruslo#1338 from chfast/libscrypt

Add libscrypt

stdext-path 0.0.1-p0

Merge pull request ruslo#1337 from ruslo/pr.nlohmann_json

nlohmann_json 3.1.0