first draft sysdev chapter. sent.
Merge branch 'wmt'

Conflicts:
	.aspell.en.prepl
	.aspell.en.pws
	systemDevelopment.tex
first draft gyro trans. corrections gyro gen.
gyro trans sent.

added texcount.pl from Matt.
added some file extensions to .gitignore
b/c output from frontmatter.
intro addressed comments.