Fix Commit stats and diff encoding issues

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Gemfile

@@ -32,7 +32,7 @@ gem 'omniauth-shibboleth'
 # Extracting information from a git repository
 # Provide access to Gitlab::Git library
 # gem "gitlab_git", path: '../../gitlab_git'
-gem "gitlab_git", git: 'https://gitlab.com/gitlab-org/gitlab_git.git', ref: '187ff05aef6fc5390a2d666f35f84de0db9777b7'
+gem "gitlab_git", git: 'https://gitlab.com/gitlab-org/gitlab_git.git', ref: 'b53b948a9248ea3a4b7f2bd6c7f9938fbd5e952b'
 
 # Ruby/Rack Git Smart-HTTP Server Handler
 gem 'gitlab-grack', '~> 2.0.0.pre', require: 'grack'

Gemfile.lock

 GIT
   remote: https://gitlab.com/gitlab-org/gitlab_git.git
-  revision: 187ff05aef6fc5390a2d666f35f84de0db9777b7
-  ref: 187ff05aef6fc5390a2d666f35f84de0db9777b7
+  revision: b53b948a9248ea3a4b7f2bd6c7f9938fbd5e952b
+  ref: b53b948a9248ea3a4b7f2bd6c7f9938fbd5e952b
   specs:
     gitlab_git (7.0.0.pre)
       activesupport (~> 4.0)

app/controllers/projects/commit_controller.rb

@@ -19,13 +19,7 @@ class Projects::CommitController < Projects::ApplicationController
                   []
                 end
 
-    begin
     @diffs = @commit.diffs
-    rescue Grit::Git::GitTimeout
-      @diffs = []
-      @diff_timeout = true
-    end
-
     @note = project.build_commit_note(commit)
     @notes_count = project.notes.for_commit_id(commit.id).count
     @notes = project.notes.for_commit_id(@commit.id).not_inline.fresh

app/controllers/projects/repositories_controller.rb

@@ -5,7 +5,7 @@ class Projects::RepositoriesController < Projects::ApplicationController
   before_filter :require_non_empty_project
 
   def stats
-    @stats = Gitlab::Git::Stats.new(@repository.raw, @repository.root_ref)
+    @stats = Gitlab::Git::Stats.new(@repository.raw_repository, @repository.root_ref)
     @graph = @stats.graph
   end