v1.17.1

Changes between v1.17.0 and v1.17.1:
a319609 fix bug in linux script that determines arch + add separate dirs for 32 and 64 bit libs
d1fbc99 fix bug when generating mac package and -no-zip-dir given + copy dylibs
910311e remove spurious win.perspective (a typo)
3ea0de3 pause game when steam overlay active
de54654 avoid warning on linux when using steamworks
e2760ce fix error in docs for am.viewport