previously there was a global "default header" object which each OpatIO table used to build off of. The issue was that this did a shallow copy so if there were multiple OpatIO objects instantiated they would all modify the same header object. This has been resolved by moving the default header to a function which generates it fresh for each OpatIO object.
the new general purpose index design introduced a bug in the loader related to the byte position of the byteStart field. This has been resolved. Further, I have updated the save to ascii format to provide an explicit warning that the ascii version is only for debugging purposes and not meant to be used directly.
