* AAindex1::index method   * fix critical bug in (failed in treating negative values)   * added functionality to return a hash with several type of the values     * index(:float) is default and returns a hash with float values     * index(:string) returns index values as String (to maintain '0.' etc.)     * index(:integer) returns a hash with integer values by multiply       least maximal figures for avoiding roundoff errors.     * index(:zscore) returns a hash with N(0,1) normalized values * added comment method
* AAindex1::index method
  * fix critical bug in (failed in treating negative values)
  * added functionality to return a hash with several type of the values
    * index(:float) is default and returns a hash with float values
    * index(:string) returns index values as String (to maintain '0.' etc.)
    * index(:integer) returns a hash with integer values by multiply
      least maximal figures for avoiding roundoff errors.
    * index(:zscore) returns a hash with N(0,1) normalized values
* added comment method

csw/bioruby-phyloxml