Update beta release date.

NEWS.txt

@@ -3,7 +3,7 @@ Release Notes
 =============
 
 
-Theano 0.10.0beta2 (5th of September, 2017)
+Theano 0.10.0beta2 (7th of September, 2017)
 ===========================================
 
 This release contains new features, improvements and bug fixes to prepare the upcoming release candidate.

doc/index.txt

@@ -21,7 +21,7 @@ learning/machine learning <https://mila.umontreal.ca/en/cours/>`_ classes).
 News
 ====
 
-* 2017/09/05: Release of Theano 0.10.0beta2, new features and many bugfixes, release candidate to coming.
+* 2017/09/07: Release of Theano 0.10.0beta2, new features and many bugfixes, release candidate to coming.
 
 * 2017/08/09: Release of Theano 0.10.0beta1, many improvements and bugfixes, release candidate to coming.
 

doc/introduction.txt

@@ -165,7 +165,7 @@ Note: There is no short term plan to support multi-node computation.
 Theano Vision State
 ===================
 
-Here is the state of that vision as of August 9th, 2017 (after Theano 0.10.0beta1):
+Here is the state of that vision as of September 7th, 2017 (after Theano 0.10.0beta2):
 
 * We support tensors using the `numpy.ndarray` object and we support many operations on them.
 * We support sparse types by using the `scipy.{csc,csr,bsr}_matrix` object and support some operations on them.