Add Vasconselos thesis.
Adding Schillinger preprint.
Update lines of code count.
Add lines of code and files per month to plot.
Double-checking types used with string::find()
Change number of Doxygen columns to 3.

Thanks @dmcdougall for bringing up this issue.
miscellaneous_ex10 should be faster

With METHOD=dbg it can take forever for miscellaneous_ex10 to get
trough METIS; using tiny meshes fixes that.
Removing a 'using namespace libMesh' from parallel_implementation.h,
fixing the resulting fallout.

Thanks Michael Povolotskyi for bringing this issue to our attention.
Fixing namespace issue in adjoints_ex5.
Fixing reduced basis examples after recent namespace changes.
Fixing namespace issue in misc ex7.
Fixing namespace issues in misc_ex9.
Fixing ifdef in misc ex11.

LIBMESH_ENABLE_SECOND -> LIBMESH_ENABLE_SECOND_DERIVATIVES
Merge pull request #243 from libMesh/namespace

Namespace
Update traffic.
Merge pull request #242 from libMesh/small_misc_ex10

miscellaneous_ex10 should be faster
Use libmesh_error_msg() where appropriate.
Adding --enable-strict-lgpl configure option.
Ran bootstrap.
Make --enable-strict-lgpl the default.

Issue #224.