Reorganize some calculations. Combine all implicit solutions (those
needing linear algebra) into a single function.
Generalize surface heat flux calculations. Create mesh function to give
index based on position.
Fix steady state initialization method.
Use boolean functions to perform comparison of double precision numbers.
Add Y dimension to all PDE solutions. Complete majority of 2D-to-3D
conversion.
Make all X/Y blocks and surfaces relative to the foundation outline
boundary.
First cut at 3D solution. Still buggy.
Fix bug related to zero thickness cells in 3D.
Minor changes to zero thickness cell property calculations.
Implement ADI solution.
Add ability to create multiple animations from a single animation. Each
animation can set X, Y, or Z slices and vary the extent of the other two
dimensions. Start and end dates of animations can also be set.
Merge branch 'develop'