Cleaned up and updated test files. Including MASS as suggested package for tests
Cleaned up whitespace
Don't compute U when taking svd, for performance. #23
Actually commited the change for #23...
Merge remote-tracking branch 'origin/master' into post-align-trans

Conflicts:
	R/xBalance.R
Whitespace cleanup
Revert "Addressing RItools issue 24, Use pmatch to parse report arg of xBalance. Passes existing tests, confirming that fully written out report args will be understood as before; new functionality not yet tested."

This reverts commit 156a5a07a2992c17c1f0b388c463655a12573be5.

Conflicts:

	R/xBalanceEngine.R
Revert "First step toward pmatch() to parse report= arg of xBalance()."

This reverts commit 9e5980e625415e24d04f3518bf1c4bfcd39fa447.
Updating test to go along with the reverts
Allow some partial matching in the 'report' argument'. #24
Merge remote-tracking branch 'origin/master' into post-align-trans

Conflicts:
	R/xBalanceEngine.R
Added tests for post.alignment.transform, #26