Tag 1.5.90 (2.0 beta1) release

Tag 1.5.3 release

Tag 1.5.2 release

Tag 1.5.1 release

Tag 1.5.0 release

Win/x64: Fix improper callee save of xmm8-xmm11

The x86-64 SIMD accelerations for Huffman encoding used incorrect
stack math to save xmm8-xmm11 on Windows.  This caused TJBench to
always report 1 Mpixel/sec for the compression performance, and it
likely would have caused other application issues as well.

Fix 'make dist'

Tag 1.4.1 release

Tag 1.4.0 release

Tag 1.3.90 (1.4 beta1) release