Merge branch 'development' into feature/new-quadrature

* development: (25 commits)
  scalar: Tweak number of Legendre nodes used for tests.  Remove whitespace.
  cmake: tweaking install target
  docu: fix links to Jenkins jobs; removed links to travis builds
  docu: fix HTTPS link of MathJax
  Remove options.hpp (my mistake).
  Add 'install' cmake target.
  Rearrange MLSDC and PFASST, reduce to MLSDC.
  examples: fix van-der-Pol linking
  another try on fixing Travis
  tests: 'fixing' Scalar highprec test
  travis: fixing Boost ?
  config: fix GCC build
  cmake / travis: fixing Travis and CMake compiler version detection
  config: introducing single init function; add quadrature parameters
  config: usage example for command line parameters
  config: registering config options for SDC and AdVec
  config: first draft (using boost::program_options)
  small fixes on vdp oscillator
  changed parameters
  vdp test now running, but there is an inconsistency in the way the solution is wrote into a file
  ...

Signed-off-by: Torbjörn Klatt <t.klatt@fz-juelich.de>

Conflicts:
	examples/advection_diffusion/advection_diffusion_sweeper.hpp
	examples/advection_diffusion/vanilla_sdc.cpp
	include/pfasst/pfasst.hpp
	include/pfasst/quadrature.hpp
	tests/examples/scalar/test_scalar_highprec.cpp
examples: fixing van-der-Pol; still failing
vdp: Fix initial condition.