Update pylint and astroid, reduces pylint count by 400

requirements/edx/base.txt

@@ -122,7 +122,7 @@ django-cors-headers==0.13
 django_debug_toolbar==1.2.2
 
 # Used for testing
-astroid==1.3.4
+astroid==1.3.8
 bok-choy==0.4.3
 chrono==1.0.2
 coverage==3.7
@@ -142,7 +142,7 @@ nose-ignore-docstring
 nosexcover==1.0.7
 pep8==1.5.7
 PyContracts==1.7.1
-pylint==1.4.2
+pylint==1.4.4
 python-subunit==0.0.16
 pyquery==1.2.9
 radon==1.2

scripts/all-tests.sh

@@ -58,7 +58,7 @@ git clean -qxfd
 source scripts/jenkins-common.sh
 
 # Violations thresholds for failing the build
-PYLINT_THRESHOLD=6600
+PYLINT_THRESHOLD=6200
 JSHINT_THRESHOLD=3700
 
 # If the environment variable 'SHARD' is not set, default to 'all'.