Merge branch 'property_map_hfh_int_support' into 'master'

Property map hfh int support

See merge request !22
9 jobs from master in 3 minutes and 53 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #38363
VS2013
VS2013-32-bit

00:00:57

passed #38362
VS2013
VS2013-64-bit

00:00:53

passed #38361
VS2015
VS2015-32-bit

00:01:01

passed #38360
VS2015
VS2015-64-bit

00:01:26

passed #38357
Linux
clang-c++11

00:03:37

passed #38359
Linux
cppcheck

00:00:25

passed #38364
Linux
doc

00:00:18

passed #38356
Linux
gcc-c++11

00:03:52

passed #38358
Apple
macos-c++11

00:01:26