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