SEG / MUT / MAF changes * Support optional sample "keys" distinct from sample names.  Necessary for cBio * Change default display mode to "EXAPNDED", and default height to 300
SEG / MUT / MAF changes
* Support optional sample "keys" distinct from sample names.  Necessary for cBio
* Change default display mode to "EXAPNDED", and default height to 300

igvteam/igv.js,igvteam/igv.js