Added ignore file.

Switch from PyAngle to MeshPy.

Trivial fixes to adapt to pymbolic changes.

Meaningless change in mesh.py.

Fixed Fempy for PyLinear op/comp split.

Merge with Doerfler mainline branch.
more pythonification
move to standalone expression code
why was this not merged?

Merge with Doerfler iam branch.
Among other things: 
rename classes from tXXX to XXX.
factor out tools.

tag of inform@tiker.net--2005-public/fempy--mainline--1.0--patch-1

Merge IAM changes

tag of ak@ixion.net--2003-diplomarbeit/fempy--prototype--1.0--patch-71

more verification code

complex number fix for element_norms, fix in bessel_piecewise error estimation

bessel convergence done

added bessel_piecewise.py

some rather unimportant fixes

removed spurious "DUDE!" :)

fixed a very subtle bug in the btree

2D Grid visualization, fixes for mesh construction, use of bicgstab

small fix to 1D code, some debug blurbs in solver.py

forgot to commit 1d test case

generalized fempy to 1d

made sure the test cases work

another big speedup for expression.py
by using only interned strings as dict keys

many fixes
speedup of exact meshes
serious bug fix in boundary finding
speedup of expression module (interned operators)
iter...() functions on tDependentDictionary

added plotting of the exact mesh

added dictionary of arithmetic types

small fixes
can specify typecode for getVolumeIntegralXXX function
more integer tuple generation
can specify number assignment for eigensolver to use
ritz-galerkin function discretization 
bug fix in tMeshFunction.__imul__
removed getUnitCellGeometry

small tFiniteGrid additions

small tools changes
mesh functions support scalar division
enlarging of finite grids

much stronger checking in eigensolver

small tools update

temporary visualization fix for vtk double-float kerfuffle

tools additions
gnuplot graphing
integer tuple generation
linear combinations

easy function discretization in mesh_function.py

Fixed a serious exact mesh generation bug

added tLinearSystemOfEquations

added innerIndices method to tFiniteGrid