Revert "removed extraneous MYFLT definitions"

This reverts commit 9b02969ce164f354cca540994df237a582d7bc00.
updated for 6.03.2 release
updated for 6.03.2 release
updates to prevent double MYFLT definitions; also added includes of float-version.h to ensure USE_DOUBLE is set correctly before compilation
updated headers for iOS
Merge branch 'hotfix/6.03.2'