Add Tegra toolchain support

BUGFIX: Add support for broadcasting weights when using mean.

Merge pull request arrayfire#1844 from arrayfire/devel

Release v3.5.0

Merge pull request arrayfire#1682 from arrayfire/hotfix-3.4.2

Release v3.4.2

Merge pull request arrayfire#1623 from arrayfire/hotfix-3.4.1

Release v3.4.1

Merge pull request arrayfire#1589 from arrayfire/devel

Release v3.4.0

Merge pull request arrayfire#1394 from arrayfire/hotfix-3.3.2

Release 3.3.2

Merge pull request arrayfire#1341 from arrayfire/hotfix-3.3.1

Hotfix 3.3.1

Merge pull request arrayfire#1306 from arrayfire/devel

Devel --> Master merge: Release 3.3.0

Merge pull request arrayfire#1260 from pavanky/where_fix

BUGFIX: Fixing error in where for OpenCL backend