Maxclient

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* Fix bug that returned None when max returned [] [Carles Bruguera]

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* Added mod operation for context [Carles Bruguera]

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* Update Manifest [Victor Fernandez de Alba]
* New wraper for conversation tokens endpoint. [Victor Fernandez de Alba]
* Added wrapper for post activity as a context endpoint [Victor Fernandez de Alba]
* Added new method for identify current actor [Victor Fernandez de Alba]
* Update sensible defaults for maxclient [Victor Fernandez de Alba]

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* Added wrapper for upload users avatar [Victor Fernandez de Alba]

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* Add more verbose errors [Victor Fernandez de Alba]
* Updated minor version to match the MAX minor version [Victor Fernandez de Alba]

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* Fix latter endpoint added and better handling for delete operations. [Victor Fernandez de Alba]
* Merge branch 'master' of github.com:UPCnet/maxclient [Victor Fernandez de Alba]
* Add new endpoint wrapper [Victor Fernandez de Alba]
* Better propagation of the information about what happened [Victor Fernandez de Alba]