renamed GMM.java to Gmm.java
renamed GMM_Set.java to GmmSet.java
renamed GMM_Input.java to GmmInput.java
renamed GMM_Utils.java to GmmUtils.java
renamed GMM_Att/Element.java to GmmAtt/Element.java
renamed GMM_Table(s).java to GmmTable(s).java
renamed GMM_Parser.java to GmmParser.java
renamed all *MFD*.java to *Mfd*.java
deprecated classes marked *OLD.java
renaming other caps acronyms to camel case
renamed IMT.java to Imt.java
changed atten rel to ground motion model; mostly in comments