Fixes to ambqi, now solution-sound.
add splits
add splits
Merge branch 'master' of github.com:tiliang/CVC4
fix a bug in contain
patch to the last commit: add a single character case
Adding encoding of sha1 collision for the hashing example
Basic optimizations for ambqi : only normalize UF applied to variables, direct handling of NOT
Fixes to quantifiers rewriter to prevent miniscoping nested quantifiers.  Minor fixes to ambqi.  Preparation for CASC proof output.  Add NNF option.
Major simplifications to macros module.
Add variable ordering to ambqi.  Bug fix to macros. More preparation for CASC proofs.
Initial draft of run scripts for CASC j7
Fix for example installation.
Bug fixes to CBQI.  Add first draft of CASC j7 TFF script.  Add regression, minor changes.
More preparation for CASC proofs.  Minor fix for sort inference (rewrite new assertions).  Bug fix for ambqi : simplify correctly for multi-sorted case.  Bug fix for fmc : only do exh-simplification for uninterpreted sorts, ensure reps are enumerated for quantification over Real.
Replace lemma sending with EQ assertions. Fix a typo in hex_to_int function.
Replace lemma sending with EQ assertions. Fix a typo in hex_to_int function.
Merge branch 'master' of github.com:tiliang/CVC4
Add a benchmark that detects a bug in parsing. Thank Vijay for his bug report.
Merging in additional glpk options and statistics from CAV submission.