Changes in version 1.2.2:

    o   Improve vignette document.

    o   Description corrected.

Changes in version 1.2.1:

    o   Psi value calculation function, i.e. psi(), is added.

    o   referencePrepare() function improved; It is optimized to run faster.

    o   annotateU12() fucntion supports DNAStringSet objects as its
	 refGenome input.

    o   Minor corrections to interest.sequential() and interest().

    o   eBayesInterest() removed.

    o   Improve vignette document.