Beta version 1.7-beta3

• New option --model-joint MODEL to enforce joint model name for all partitions while rate heterogeneity is still unlinked.
• Update Terraphast library (thanks Lukasz).
• Proper parsimony branch lengths by ancestral reconstruction.
• -bl-eval default to 1 (instead of 2) thanks to better parsimony branch lengths.
• Faster and SIMD kernel for Sankoff parsimony.
• Much faster parsimony with constraint tree.
• Parallel computation of parsimony trees.

Bugfixes:

• Crash with consensus construction for rooted trees.