NEO: add 'coverage' egg for tests + version up for ERP5

This is a follow-up of commit 30c5367a

software/neoppod/software-common.cfg

@@ -50,6 +50,7 @@ eggs = neoppod[admin, ctl, master, storage-mysqldb]
   ZODB
   zope.testing
   zodbtools
+  coverage
   setproctitle
 patch-binary = ${patch:location}/bin/patch
 ZEO-patch-options = -p1
@@ -117,6 +118,7 @@ md5sum = 87d18c7021e4d43756813a83c9da5e97
 BTrees = 4.4.1
 ZODB = 4.4.5
 apache-libcloud = 1.5.0
+coverage = 4.5.1
 ecdsa = 0.13
 gitdb2 = 2.0.0
 msgpack = 0.5.6

stack/erp5/buildout.cfg

@@ -635,7 +635,6 @@ python-magic = 0.4.12+SlapOSPatched001
 # use newer version than specified in ZTK
 PasteDeploy = 1.5.2
 argparse = 1.4.0
-coverage = 4.3.4
 zope.dottedname = 4.1.0
 
 # test_UserManagerInterfaces in testERP5Security fails with 1.10.0.