addressed 1st comments on wmt chapter.
Merge branch 'master' into wmt

Conflicts:
	.aspell.en.prepl
	.aspell.en.pws
	thesis.tex
second draft gyro/ngramgen regeneration chapter. sent.
added note about texttt for 
 and 

moved preamble to separate file
British spelling for acknowledgEments
addressed first comments ngram generation, ngramgen
Merge branch 'master' into gyro

Conflicts:
	.aspell.en.pws
	gyroRegeneration.tex
	thesis.tex
addressed 3rd comments posteriors chapter.