Make code slightly easier to read.
Hide a variable in the only scope where it is used.

Also put braces around a longish code block.
Leave a note and a TODO.
Fix a typo.
Also expose make_tuple in std_cxx11

Our C++11 compatibility headers did not expose (std|boost)::make_tuple, fix
this.
Merge pull request #216 from tamiko/add_make_tuple

Also expose make_tuple in std_cxx11
Merge pull request #215 from bangerth/cleanups-1

Cleanups and doc updates
Introduce signals into the Solver base class.

This patch uses signals to determine whether a current iterate
satisfies the convergence criterion. Currently, the only slot that
is connected to a signal is the SolverControl::check() function,
but users will be able to connect different slots there as well,
closely monitoring the convergence process.

Adjust the testcases.
Add a mechanism to attach slots to the signal that now controls convergence.

Document this with an example that illustrates how we can observe
the iteration in process.
Document in classes derived from Solver that they use the signal/slot mechanism.
Merge pull request #204 from bangerth/use-signals-in-solvers

Use signals in solvers
Added OPENCASCADE support to cmake.

Added occ_utilities.

Fixed config.h.in, added a test.

Fixed compilation issues.

Fixed test.

Fixed point ordering.

Added function closest_point to OpenCASCADE namespace.
Added OCC::NormalProjectionBoundary

Added interpolation curve boundary test.

Updated documentation.
Added Axis Projection.
Added write_IGES routine.

Fixed typo in compilation, and header files.

Added iges_write test.

Fixed iges write.

Added iges_create test.
Added ArclengthProjectionLineManifold.

Added first arclength test

Added axis boundary 1.

Added arclength boundary 2.

Fixed loop in projection for non degenerate edges.

Added axis boundary 2.

Added Degenerate Edge Checks and Assertions.

Added two functions to split opencascade objects and a test.

Added test for extraction of geometrical entities.

Added test for extraction of compound entities.

Added creation of a single cell triangulation, on top of a surface.

Fixed possibility to use also Wires.

Fixed indentation.

Removed creation of local files.

Fixed typos in the documentation.

Fixed typos in the documentation.

Addressed @tamiko and @guidokanschat comments on configs.

Renamed OPENCASCADE_LIBRARIES to _opencascade_libraries, and removed old TRILINOS cut and paste magic.

Removed unnecessary include files, removed commented lines, fixed header for test files.

Attempt to fix tolerance.

Fixed indentation issue.

Fixed WB comments.

Fixed indentation.

Missed one 'one'.

Replaced ImpossibleInDim with ExcNotImplemented
Moved occ_ files to separated opencascade directory.

Another attempt to fix tolerances problems with goteborg.iges.

Fixed all trivial comments.

Made Asserts into AsserThrows where needed.
Aggiunto step-54

Aggiunti autori

iges file DTMB-5415_bulbous_bow.iges has been added as the geometry for the step-54 example

first working version of step-54 completed

added initial mesh for step-54 and fixed memory leakin same test

CMakeLists.txt fixed in step-54

fixed cmakelists in step-54

updating step-54.cc
an attempt to improve opencascade directional projection with informations on local normal

an other attempt to improve opencascade directional projection with informations on local normal

version with directional projection depending on normals of surrounding points is now working. to this end, a method has been added to utilities, to return differential forms (normal and mean curvature) along with closest point on the CAD surface

trying to improve the directional projection

improved cell refinement on CAD with directional projector, by adding a separated treatment for case with 2 or 8 surrounding points (edge or cell refinement). the 2 points case uses some infos about the surface normal, the 8 case comes up with an approximated cell normal
step-54 is now completed (it only needs comments). three different projectors have now been created in boundary_lib: normal, directional and normal_to_mesh. to adjust tolerances, a new method retrieving tolerances from a shape has been added

Fixed indentation.

fixed some problems with residual calls to Pnt() (now Point()) and axis_ intersection() (now line_intersection()) functions in boundary_lib. files coarse_sphere and coarse_circle removed from step-54 directory. also parameters.prm has been removed, and n_cycles value is asigned in an hard coded way

all input and output files have been converted to .vtk

added comments to step-54.cc

fixed all the notes by luca exept for that on the closest point function

Fixed indentation.