Merge branch 'stable-2.9'

* stable-2.9:
  Describe 'No Differences' label in review UI documentation
  Describe red bar for line gaps in review UI documentation
  Link new review UI documentation from 2.9 release notes
  Add 'View Plugins' global capability that allows to list plugins
  Keep new draft comment expanded if expand all comments is set
  Allow to download reposize.sh script from Gerrit
  Link new review UI documentation from new change screen welcome popup
  Document major differences between old and new review UI
  Describe keyboard shortcuts in review UI documentation
  Describe navigation in patch file in review UI documentation
  Describe Vim-like search in review UI documentation
  Upgrade jgit to v3.4.0.201405051725-m7
  Link 2.8.5 release notes from 2.9 release notes
  Review UI docs: Update screenshot about navigation to show all arrows
  Review UI Docs: Remove note about double-click not adding new comments
  Describe diff preferences in review UI documentation
  Add new screenshot that shows the result after replying with done
  Describe navigation between patches in review UI documentation
  Describe patch set selection and patch download in review UI docs

Conflicts:
	lib/jgit/BUCK

Change-Id: I3b63776c5eed46406c93996b190f968e294f84eb

gerrit-server/src/main/resources/com/google/gerrit/server/config/CapabilityConstants.properties

@@ -14,4 +14,5 @@ streamEvents = Stream Events
 viewAllAccounts = View All Accounts
 viewCaches = View Caches
 viewConnections = View Connections
+viewPlugins = View Plugins
 viewQueue = View Queue

gerrit-server/src/main/resources/com/google/gerrit/server/tools/root/TOC

@@ -4,3 +4,5 @@
 755 bin/gerrit-cherry-pick
 
 755 hooks/commit-msg
+
+755 scripts/reposize.sh

gerrit-server/src/main/resources/com/google/gerrit/server/tools/root/scripts/reposize.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+#
+# Copyright (C) 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Show n largest objects in a git repo's pack files.
+#
+# usage:
+#      $ reposize.sh 100		# find and list biggest 100 objects
+#
+# derived from
+# http://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
+
+if [ ! $# == 1 ]; then
+    echo "
+    Usage: $0 <number of biggest objects to show>
+        if there are loose objects the script will run 'git gc' to move all data to packs
+"
+    exit
+fi
+
+# find git repository directory
+gitdir=$(git rev-parse --git-dir 2>.error.log)
+if [ $? -ne 0 ]; then
+    echo $(cat .error.log)
+    rm .error.log
+    exit
+fi
+rm .error.log
+
+object_count=$(git count-objects -v | grep count: | cut -f 2 -d ' ')
+if [ $object_count -gt 1 ]; then
+    echo "-------------------------------------------------------"
+    echo "$object_count loose objects found in repository $gitdir"
+    echo "-> running git gc to move all data to packs"
+    git gc
+    echo "-------------------------------------------------------"
+fi
+
+# set the internal field separator to line break, so that we can iterate easily over the verify-pack output
+IFS=$'\n';
+
+# list all objects including their size, sort by size, take top $1 biggest blobs
+objects=$(git verify-pack -v $gitdir/objects/pack/pack-*.idx | grep -v chain | sort -k3nr | head -n $1)
+
+echo "All sizes are in kiB's. The pack column is the size of the object, compressed, inside the pack file."
+
+output="size,pack,SHA,location"
+for y in $objects
+do
+    # extract the size in bytes
+    size=$(($(echo $y | cut -f 5 -d ' ') / 1024))
+    # extract the compressed size in bytes
+    compressedSize=$(($(echo $y | cut -f 6 -d ' ') / 1024))
+    # extract the SHA
+    sha=$(echo $y | cut -f 1 -d ' ')
+    # find the objects location in the repository tree
+    other=$(git rev-list --all --objects | grep $sha)
+    output="${output}\n${size},${compressedSize},${other}"
+done
+
+echo -e $output | column -t -s ', '