Bayesian ANOVA: Added callbacks, fixed indentation
Bayesian ANOVA UI: hid unused options
Fix to NA handling for BF packages 0.98

BayesFactor package 0.98 no longer handles NAs for t-tests and ANOVAs,
these changes exclude NAs before calling BayesFactor
Updates to Build Instructions

Fixes #33
ANOVA Bayesian: Hide unimplemented options for now
Fixes to Error Message positioning
Added support for footnotes in column headings
SEM: Updates to paste handling in model desc

Pasting in a model did not trigger syntax highlighting correctly