turn off unused .onLoad and .onAttach functions
minor fixes

fixing output of diffr() to something more appropriate and adjusting
tests
added examle to readme.md
minor fixes
Merge branch 'master' into going-for-version-0.1.2

Conflicts:
	R/alignExample.r
	R/diffr.r
	R/zzz.r
	README.md
	tests/testthat/tests.r