Add mcA and vP to hwdef
Add beginning of PD section in IIC
Some rewording of first elasticity bit
Remove dummy header from IIC
Set up for proper handbook formatting

- Add all the necessary outline sections.
- Use custom preamble.
- Collect order of sections in thesis.rst
Use latex toc
Comment out titlesec til I figure it out
Fix section headings throughout
Start ellipticity
Simple build
Use a preamble and hwdef so quick builds of sections can be done
Acoustic ellipticity
Add abstract
PD note in notes
Remove pointless newpages from thesis, remove FEA sec
Fix abstract format
Remove pointless tangent map fig from IA
Fix section levels in IB
Remove FEA stuff from IIA.  Might do variational stuff instead
Add (flawed) M-R elasticity tensor discussion