fix bug 534: portfolio define-fun duplicate model
Merge branch 'master' of https://github.com/CVC4/CVC4
Documentation fixes, some code typo fixes, file perms, other minor things.
Move some regress benchmarks around that took too long, other test cleanup.
Fix sat_proof "parentheses into the void" after conferring with Liana.
Re-enable predicate subtyping, reversing commit 8f9f549 (needed for Kind integration)
fix for lambdas in relation to subtypes
fixup for miplib trick (related to lambda fix for subtypes)
subrange-related fix
new --tear-down-incremental mode
new --force-logic option that overrides what the input says
more ITE rewrites
some of the minisat markers/assumption framework
Revert "subrange-related fix"

This reverts commit 771943753d540defa4e708667f70fee131462367.