Minor bug fixes

The source code with submodules can be downloaded directly from the following link:
http://arrayfire.com/arrayfire_source/arrayfire-full-3.0.2.tar.bz2

Bug Fixes

• Added missing symbols from the compatible API
• Fixed a bug affecting corner rows and elements in grad()
• Fixed linear interpolation bugs affecting large images in the following:
  • approx1()
  • approx2()
  • resize()
  • rotate()
  • scale()
  • skew()
  • transform()

Documentation

• Added missing documentation for constant()
• Added missing documentation for array::scalar()
• Added supported input types for functions in arith.h