Minor edit.

 * Include TairaColoniusSolver.h in createSolver.h.
 * Destroy vector `error` at the end of NavierStokesTest.cpp.
 * Remove extra statement that recreates lambdaGold in NavierStokesTest.cpp.
Add regression test for TairaColonius.

 * Edit makefile appropriately.
 * Remove print statements from generateBNQ and initializeBodies.
Add cases for lid-driven cavity at Re 3200, 5000.

* Edit makefile appropriately.
* Add centerline velocity fields for Re 3200, 5000 to cavity-GGS82.txt.
* Edit cavity.py to plot comparison plots for Re 3200, 5000.
* Add a newline before the sentence displayed during a restart.
Add case for 2-D lid-driven cavity at Re=3000.

* Edit makefile.
* Change simulation parameters for Re=3200, 5000 cases.
* Write dt to simulationInfo files.
* Edit plotting scripts to read dt from the Info files.
* Edit cavity.py
  * Output the centerline velocities into a text file
  * Draw plots for cases when validation data is not available.
  * More error messages when a problem is encountered.
Display PETSC_DIR and PETSC_ARCH using make vars.
Merge branch 'develop' into petsc-3.5-compatible
Make tests PHONY and clean .DS_Store files.
Merge branch 'develop' into petsc-3.5-compatible
Update gold solution for TairaColonius test.

 * Slightly different from the solution obtained using PETSc 3.4.
 * Normalized difference in solution was 7e-4, higher than 5e-4.