from daint, new test HIT added with some fftw. cloud was refactored. sensors added.
some improvement for sensors in cloud cavitation.
Factor 0.5 was in the wrong place in heaviside smooth.
Merge branch 'github' of ela.cscs.ch:/users/hbabak/CUBISM-MPCF into github
added Einfeldt wave speed estimates
Added pressure-based wave speed estimates

Based on Toro et al., "Restoration of the Contact Surface in the HLL-Riemann
Solver", 1994.
Put all of HLLC into Convection_CPP_HLLC
Reverted Convection_CPP to state on github
Added -kernels cpp-hllc for HLLC fluxes
Minor in Convection_CPP_HLLC -> squash later
experimental hllc added and hllc qpx partially
Merge remote-tracking branch 'ela/github' into github
some makefile fixes for euler cluster
Merge branch 'github' of reynolds.ethz.ch:/Users/hbabak/cselab/projects/CUBISM-MPCF into github
hllc qpx partially done
Merge branch 'github' of ela:~/CUBISM-MPCF into github
Merge branch 'github' of reynolds.ethz.ch:/Users/hbabak/cselab/projects/CUBISM-MPCF into github
hllc kernels added in qpx...testing mode
Added 2D bubble test
minor addition to .gitignore