BLD: Update numexpr to latest to satisfy tables deps. (#1636)

* BLD: Update numexpr to latest to satisfy tables deps.

tables 3.3.0 requires numexpr >= 2.5.2

Also remove numexpr conda recipe.

conda/numexpr/bld.bat

@@ -1,8 +0,0 @@
-"%PYTHON%" setup.py install
-if errorlevel 1 exit 1
-
-:: Add more build steps here, if they are necessary.
-
-:: See
-:: http://docs.continuum.io/conda/build.html
-:: for a list of environment variables that are set during the build process.

conda/numexpr/build.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-$PYTHON setup.py install
-
-# Add more build steps here, if they are necessary.
-
-# See
-# http://docs.continuum.io/conda/build.html
-# for a list of environment variables that are set during the build process.

conda/numexpr/meta.yaml

@@ -1,22 +0,0 @@
-package:
-  name: numexpr
-  version: "2.4.6"
-
-source:
-  fn: numexpr-2.4.6.tar.gz
-  url: https://pypi.python.org/packages/source/n/numexpr/numexpr-2.4.6.tar.gz
-  md5: 17ac6fafc9ea1ce3eb970b9abccb4fbd
-
-requirements:
-  build:
-    - python
-    - numpy x.x
-
-  run:
-    - python
-    - numpy x.x
-
-test:
-  # Python imports
-  imports:
-    - numexpr

etc/requirements.txt

@@ -43,7 +43,7 @@ decorator==4.0.0
 networkx==1.9.1
 
 # NumericalExpression pipeline terms.
-numexpr==2.4.6
+numexpr==2.6.1
 
 # On disk storage format for pipeline data.
 bcolz==0.12.1