Updated the WFS documentation
Documentation Update. Still to do: References, expand discussion on image plane size and sampling wrt DFT.
This update is only for academic side of project, need to add document on implementation (in particular for lenslet array).
Added procedure for calculation of the lenslet array
Update to noise documentation.
Documentation Update:
- Added sampling info to DFT discussion
- General grammar/structure edit

To Do: Regenerate Figures with new code as PDFs.
Regenerated Figures:
- as PDFs for clarity
- using updated scripts for more uniform plots
Merge pull request #88 from faitdivers/WFSDocumentation

WFS Documentation