Adding source sampling theory manual entry to index.
Merge pull request #492 from elliottbiondo/develop

Adding source sampling theory manual entry to index.
forgot to made pyne/source_sampling MOAB dependent
rmeoved conditional blas and lapack linking
Merge pull request #491 from scopatz/fbuild

cpp -> src
made the readme lines only 80 characters long and removed double spaces. I have some questions on a few of the items. I will make those on github.
Update readxs.f90
Merge pull request #14 from rachelslaybaugh/patch-1

notes inside of readxs.f90
Merge pull request #13 from rachelslaybaugh/tmpdev

made the readme lines only 80 characters long and removed double spaces....
Finished sct-step implementation, segmentation fault, verified results for test example and a few other little things
Small doccumentation addition
Added partial explanations of solvers
Backed out wrong xsdata implemenataion, updated dictionary files and fixed sct-step dictionary generator for spatial solver example
Added dictionary key-pair values and examples to spatialsolver.rst
Added linebreaks to spatialsolver.rst
Try to for spacing
Try 3
Minor rst spacing fix
Fixed a bunch of rst errors in spatialsolver.rst
VB instructions.