Merge remote branch 'clawpack/master'
Merge remote branch 'upstream/master'
Merge remote branch 'origin/master'
Added variable coefficient traffic reimann solver.
Fixed input variables for rp1_trafficvc and edited files to allow solver to be callable by PyClaw.
Renamed variable coefficient solver.
Fixed reference to vc traffic solver.
Merge pull request #49 from BrisaDavis/vctraffic

Added variable coefficient traffic reimann solver.
Moving amdq/apdq loop into main loop for efficiency
F90-izing 2D elasticity solver
Merge pull request #51 from gradylemoine/elastic-improvement

Sprucing up elasticity Riemann solvers
rptt3 not completely converted to new ordering. fixed formatting in the others
Merge branch 'master' of github.com:mjberger/riemann
Merge pull request #52 from mjberger/master

euler riemann solvers not fully converted to reordered parameters with meqn and maux first.  Also prettied up a little.
Remove gamma1 from rp3 Euler common block.
Merge pull request #53 from ketch/no_gamma1

Remove gamma1 from rp3 Euler common block.
changed dimension statements to conform to others, but since aux arrays not used doesnt really matter
Damian's reordering of maux argument.
Merge pull request #54 from mjberger/3dSrcAndExamples

changed dimension statements to conform to others, but since aux arrays ...
Change order of function argument calls, rename ilr to imp

Commit changes the order on the transverse solvers so that `ixy` and `imp` are
now in the front of the calling sequence.  Some of the solvers also used `ilr`
rather than `ilr` so these were also converted to `imp`.  For 3D the same was
done except that there was an additional parameter `impt` which was also moved
to the front of the calling sequence.