Added test for CudaTensor.{mean,var,std}

Two tests (the dimension-wise means) currently fail.
Added single-dimensional CudaTorch.mean

i.e. the form
	y = torch.mean(x, dim)
Fixed documentation for torch.var
add custom gnuplot style string option,
add ability to pass in multi-column data
Merge branch 'master' of github.com:andresy/torch
Merge pull request #143 from akfidjeland/cuda-mean

Cuda mean
Let print() to print a new line.
Merge pull request #144 from fidlej/topic_println

Let print() to print a new line
Added a new torch.match() function.

That function allows matching batches of vectors with batches of
kernels. It's general enough that I thought it would be a nice addition
to the base module.
Update index.dok

Added <Use an empty string (2 apostophes in a row) if you want to keep the current value.> for keeping the current value of {xmin,xmax,ymin,ymax} in <gnuplot.axis> documentation. Actually, I don't know how to write the <''>, since these are a command in the documentation..
add documentation for gnuplot custom string
Merge branch 'master' of github.com:andresy/torch
add the new plot into repo
add wxt term for mac
Merge pull request #145 from Atcold/patch-1

Update index.dok
make default plot theme something nice
make sure to obey .gnuplot file if it exists
do not use filled style by default
Merge remote-tracking branch 'upstream/master'