Update books/01_Genesis.tex

In Gen 49:10, changes "shall" to "will" in accordance with Translation Principle 
#17; adds a footnote at the end of the verse indicating that the Dead Sea Scrolls lack verse 10.

Amended by Charles Welty. Authorized by William P. Welty, Ph.D. of The ISV Foundation on 06 JAN 2013 at 10:09AM PST.