Parameter update does not utilize the result from linesearch( )

[zhongwen]

Hi Wojciech,

In https://github.com/wojzaremba/trpo/blob/master/main.py#L168-L170

                theta = linesearch(loss, thprev, fullstep, neggdotstepdir / lm)
                theta = thprev + fullstep
                self.sff(theta)

the theta obtained from linesearch does not affect the result, is there something wrong here? Thanks.

[wojzaremba]

Good point. Would you like to fix it, and make sure that it works after ?