Peak Detection can be disabled by default by setting the "peakDetect" option to false.
Add git svn documentation.
Add unit tests (using qunit) to test aminoacid.js, peptide.js, and ion.js.
Refactor _seqMassMono and _seqMassAvg to use common base function.
Refactor _addResidueModMasses to reduce looping, simplify logic.
Refactor to simplify and reuse n versus c term subsequence logic.