properly clear constraints
test EWSB for instable point

This point does not work when only gsl_multiroot_fsolver_hybrid and
gsl_multiroot_fsolver_hybrids are used.  It works with
gsl_multiroot_fsolver_broyden or gsl_multiroot_fsolver_newton .
doc/paper.tex: refer to Sec:SpecGenStruct in section "Adapting C++ code"
doc/paper.tex: reduce repetition of "straightforward"
doc/paper.tex: change "auto-generated" -> "out of the box"

Since the NUHMSSM executable is also auto-generated to some extent.
set pole mass calculation precision in the model file
set eigenstates and time constraints in the model file
Add example with customized beta functions

MSSM with 3-loop g3 beta function from an alternative source,
i.e. hand-written in this case.
Change link to 3-loop MSSM beta function web page
Test-run more examples
fix typos in the introduction and add ref. for SuseFlav
Merge branch 'feature-custom-betas' into development
Update ChangeLog
doc/paper.tex: add to text on lapack
Improvements suggested by Dominik
remove executable flag
extend section 4 a bit and give more quick start examples
use as GUT condition TLambda = Alambda * lambda
use proper shell command
typo in the path to the SLHA file