move tangurnis into benchmark folder
update dirs in tangurnis benchmark Makefile
add notes to benchmark
inclusion benchmark
Changed porosity velocity field to porosity pressure (scalar) field to
match method used in Keller, 2013.
Applied astyle rules, again for consistency.
Extend the Introspection class to provide information about the base
elements of the composite finite element used everywhere.
Convert a number of places where we had hardcoded base element indices
by search/replace. A few places still need to be looked at.
Add a number of definitions for member variables, including one we
appear to have forgotten previously.
Some more conversions of explicit base element numbers.
Provide some more cleanups.
Some more generalizations now possible with the extended Introspection
class.
Ignore Eclipse project files.
Merge pull request #5 from bangerth/master

Make some places of the code more generic where we currently hard-code base element numbers, by describing base elements in the Introspection class.
Merged base element generalization from main.
Merge pull request #2 from tjhei/reorderbenchmarks

Reorder benchmarks
add TemperatureOrComposition::component_index
start work on DirectSolver by putting u+p into one block

Still incomplete, have to fix many other places that assume specific
blocks. I had to rework Introspection::BlockIndices for this.
rework initial temperature conditions to use component_index
update .gitignore