Fixes #1619

[joshuaspence]

The latest version (1.5.0) of less.js conflicts with require.js (if loaded before require.js), causing the following error:

Uncaught TypeError: Object function require(a){return window.less[a.split("/")[1]]} has no method 'config'

It seems that this is only an issue with the minified version (less-1.5.0.min.js) because the minified JavaScript is not wrapped in an anonymous closure. Adding function(){ to the beginning and }()) to the end of the minified file.

[lukeapage]

Thanks.. will look into this.. would like to clarify why uglify is removing the wrapper if it only effects minified and make sure less is still defined globally.

[joshuaspence]

uglify isn't removing the wrapper. The wrapper is being added by the grunt concat:browser task (https://github.com/less/less.js/blob/master/Gruntfile.js#L50) which isn't executed during uglify:browser.

I am going to update my pull request with (IMO) a better solution.

[lukeapage]

perfect, thanks