Implement conv2d_transpose convenience function

Add exception when epsilon is too small.

Update "import numpy" to "import numpy as np" (theano/misc)

Update "import numpy" to "import numpy as np" (theano/compile directory)

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Fix bug caused when setting default value in Param in interactive mode

Deprecate theano.gof.utils.give_variables_names.

changed optdb.max_use_ratio to 6

Update internal documentation about "How to make a release".