Windows has a problem with some of the php:// I/O streams in this library, which this update addresses.
ISLANDORA-83 Instead of PHP_OS, now using php_uname() for OS detection.
doc fix
doc fix
doc fix
auto-commiting no more
unset to keep form cache working
commitRelationship auto commit state
simplified autoCommit set
spacing
regression fix
Merge pull request #84 from willtp87/1.x.opt_out_of_relationship_commitment

1.x.opt out of relationship commitment
ISLANDORA-83 Added function to handle Windows detection.
ISLANDORA-83 'isWindows' function is now protected. Edited comments.
Merge pull request #83 from slangerx/1.x

Windows-compatibility: Problems with php:// I/O streams
Missing Windows check that was blowing up UNIX based Tuque.
Merge pull request #85 from jordandukart/1.x

Missing Windows check that was blowing up UNIX based Tuque.
wrapped curl calls to allow for repeated attempts
Fefactor of tuque, updated constants and doc comments.
refined error trapping to 409's only, fixed tests