Do not modify input parameters

[jcstanaway]

This should resolve issue #503. The test app from #503 works.

[AVVS]

Change as it is will work, but, at the same time, there will be a performance penalty associated with this, as we'd have to create shallow copies of args for each command

@luin what do you think?

[jcstanaway]

It appears that this PR isn't needed. There is another commit on (June 8th) for #480 which also appears to resolve the issue and would probably explain why @luin wasn't able to reproduce it: I'm using the released 3.1.1 and @luin was likely running off of the latest code. 3.1.1 does not include the commit for #480.

If that's the case, then this PR can be rejected.

3.1.1 code:

Pipeline.prototype.addBatch = function (commands) {
  for (var i = 0; i < commands.length; ++i) {
    var command = commands[i];
    var commandName = command.shift();
    this[commandName].apply(this, command);
  }

  return this;
};

Latest version:

Pipeline.prototype.addBatch = function (commands) {
  var command, commandName, args;
  for (var i = 0; i < commands.length; ++i) {
    command = commands[i];
    commandName = command[0];
    args = command.slice(1);
    this[commandName].apply(this, args);
  }

  return this;
};

[luin]

@ccs018 Thank you for pointing this out! Just released v3.1.2. Sorry for not releasing this version when the fixed had been made.

[jcstanaway]

Thanks for the updated release!