Error regarding cross-terms is modified to warning...

... since it return false positives sometimes...
Fixed a bug in FunctionEvaluationTree method isConstant
Accelerated qpOASES QProblem class...

... In particular, I optimized the method
QProblem::setupCholeskyDecompositionProjected, which was quite
inefficiently coded -- bottleneck for a bit larger cases with not so
many constraints. This should be tested if it really pays off for really
small problems.

For an equ. constrained QP with nv = 183 and nc = 9 a speedup
of cca 42% was observed.
Fixing a bug with exporting functions with OnlineData inputs
Updated the HPMPC interface
Refactored tunneling of LSQ linear terms from OCP specs to CGT.
Simplified building of examples...

... disabled building of examples as a separate project.
Fixed a bug when exporting zero statements, aka X = 0
Fixed base class, CGT NLP solver, for linear term weights
Working on linear terms in the CN2 solver, NMPC case only, for now.
Merge branch 'master' of github.com:acado/acado
Merge branch 'master' of github.com:mvukov/acado
Added indicator for linear terms in the objective.
no extra input to integrate function for the backward seed anymore
typo in MEX function
Updated generated Simulink interface; added support for qpDUNES...

... based CGT OCP solvers.
Fixed makefile for HPMPC based CGT OCP solvers
Updated Travis-CI; now building on OSX as well
Windows support of master: string to char * and no "or"/"and" keywords
Another set of simplification of the build system

- code_generation.hpp includes only public classes headers. This should
  reduce compilation time of user apps if only we modify internal 
  classes.
- We do not install headers of external_package classes any more. They
  are used internally and not exposed to the end user.
- qpOASES: compilation of examples is removed.