CppADCodeGen Versions Save

Fix missing unique_ptr get().

Fix missing inline.

Fix CppAD version in PkgConfig file

Some of the highlights of this release:

• Add support for CppAD 2020
• Add support for Clang/LLVM 7.0, 8.0, and 9.0

Some of the highlights of this release:

• add support for Clang/LLVM 5.0 and 6.0
• add support for Apple
• source-code modernization
• pretty printers for GDB

Some of the highlights of this release:

• initial work on multithreaded Hessian and Jacobian evaluations
• API improvements and documentation
• support for Clang/LLVM 3.8 and 4.0
• adapted to CppAD 2017

• added the dot language (graphviz)
• added the Soares-Secchi method for DAE index reduction
• moved language related headers to a new folder
• improved MathML and Latex outputs
• improved Evaluator
• improved symbolic solution of the model relative to a single variable

Some of the highlights of this release:

• added support for Latex source generation
• added support for presentation MathML generation
• improved C source generation
• support for Clang/LLVM 3.4 and 3.6
• adapted to CppAD 2016

Some of the highlights of this release:

• changed handling of external/atomic functions
• sparse arrays are used by external functions
• some bugfixes in array space reutilization
• improved array initialization in the generated source code

Some of the highlights of this release:

• changed API for compiling dynamic libraries
• added support for JIT using Clang/LLVM 3.2
• adapted to CppAD 2014
• loop detection allows some equations to not be defined for some iterations
• created some benchmarks
• some bugfixes