Merge remote-tracking branch 'upstream/master'
making n_eqs a template parameter (will be needed for per-eq opts)
new API - almost done (shallow_water and bcbf tests still not converted)
merge with G in 2D
decorating example_2 with listing tags
Merge remote-tracking branch 'upstream/master'
cleanup in shallow_water, mpdata_rhs_vip, introducing 1D shallow-water
adding missing test_shallow_water_2d.cpp
Merge remote-tracking branch 'upstream/master'
fixes in 3d solvers
wip on hdf5 + xdmf output
add rotating sphere test
add rotating sphere test to CmakeLists
Merge pull request #84 from mwarusz/master

xdmf output and rotating sphere test
updating bombel tests to handle new code layout
listing tags in concurr::any
cleanup: removing phc.hpp and test_todo_3d
sync
sync
replacing the pds option with an abs option