OSL 1.10.3

Release 1.10.3 -- Feb 1, 2019 (compared to 1.10.2)

• oslc: Writing to function parameters not marked as output was only
  recently properly recognized as an error (it was documented as illegal
  all along). Now we demote to a warning, treating it as a full error was
  too disruptive. #944 (1.10.3)
• testshade: Check that no leftover errors are in the TextureSystem or
  ImageCache at the end of the test (that would indicate that someplace in
  OSL we are failing to check texture errors). #939 (1.10.3)
• Improve oso output efficiency. #938 (1.10.3)
• oslc: Fix bug related to counting the proper number of values used for
  array default value initialization. #948 (1.10.3)
• oslc: Slight modification to the formatting of floating point values in
  the oso file to ensure full precision preservation for float values.
  #949 (1.10.3)
• oslc: Fix crash when encountering empty-expression for (;;). #951 (1.10.3)
• oslc: Fix bug in code generation of certain while loops that directly
  tested a variable as a zero/nonzero test, such as:

      i = 3;
      while (i)
          --i;
  

  whereas the following had worked (they should have been identical):

      i = 3;
      while (i != 0)
          --i;
  

• Fix bug in implementation of splineinverse() when computing with
  Bezier interpolation. #954 (1.10.3)
• Fix bug in implementation of transformc when relyin on OpenColorIO for
  color transformation math, in cases were derivatives were needed (this
  is a rare case probably nobody ran into). #960 (1.10.3)
• Improve thread-safety of the OSLCompiler itself, in case an app wants
  to be compiling several shaders to oso concurrently by different threads.
  #953 (1.10.3)