[MetaCRS] this.defData is null

[Olivier Terral]

hi guys,

I've seen a little  error when Proj4js doesn't find the SRS definition .
In the function parseDefs, the property this.defData is null so a JS 
error appear when we try to split it

Is it possible to fix this in the trunk it's just a "if" to add   :

/**
 * Function: parseDefs
 * Parses the PROJ.4 initialization string and sets the associated 
properties.
 *
 */
  parseDefs: function() {
      this.defData = Proj4js.defs[this.srsCode];
      var paramName, paramVal;     
      if (this.defData) {
          var paramArray=this.defData.split("+");


thanks in advance
 
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