Improve weight icon

The scale as an icon for issue weight seems a little easier to recognize. I also removed the icon from the issuable form because none of the other fields have icons. We have similar icons for assignee and milestone, but they are not present here. If we want the weight icon, I propose we add the respective icons for each field.

Screenshots:

### Issue list

![Screen_Shot_2015-12-21_at_3.10.56_PM](/uploads/1578b649a7481fcc99e098ccde59d846/Screen_Shot_2015-12-21_at_3.10.56_PM.png)

![Screen_Shot_2015-12-21_at_3.08.37_PM](/uploads/f58e87c615ff68d97b509f0974833619/Screen_Shot_2015-12-21_at_3.08.37_PM.png)

### Form

![Screen_Shot_2015-12-21_at_3.12.15_PM](/uploads/54338e7c65cc9ee2645f4c7a27a0be7b/Screen_Shot_2015-12-21_at_3.12.15_PM.png)

![Screen_Shot_2015-12-21_at_3.07.19_PM](/uploads/61761287d261dfa1b37d4a1f98a9a442/Screen_Shot_2015-12-21_at_3.07.19_PM.png)

### Sidebar

![Screen_Shot_2015-12-21_at_3.13.01_PM](/uploads/2e69888e7438946df45eb988e16c65f0/Screen_Shot_2015-12-21_at_3.13.01_PM.png)

![Screen_Shot_2015-12-21_at_3.13.15_PM](/uploads/78ffcbf426f71cddbff731dd04a48687/Screen_Shot_2015-12-21_at_3.13.15_PM.png)


See merge request !88

Approvals are not reset after a new push is made if the request is coming from a fork

https://gitlab.com/gitlab-org/gitlab-ee/issues/83

See merge request !105

Added class to self when calling a post method.

This is a very small change to fixes https://gitlab.com/gitlab-org/gitlab-ee/issues/160 by prepending `class`to the `post` method. 

See merge request !106

CE upstream

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both modified:   app/assets/stylesheets/pages/projects.scss
	both modified:   app/views/shared/_clone_panel.html.haml

@jschatz1 Please resolve these conflicts. 

See merge request !99

[ci skip]

[ci skip]

Doesn't accept null value for max file size on Git hooks

Fixes gitlab-org/gitlab-ce#4664

See merge request !101

Don't show weight in form since it looks silly.

Remove the icon from the form

As discussed in https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/88#note_3027598

See merge request !100

Revert vote buttons back to issue and MR pages

https://gitlab.com/gitlab-org/gitlab-ce/issues/3672



/cc @dzaporozhets @JobV 


![joxi_screenshot_1450809309400](/uploads/379a75505e0d5f24e743aa0a6a6684e2/joxi_screenshot_1450809309400.png)


See merge request !2206

Add ability to create a note when blocking a user

https://gitlab.com/gitlab-org/gitlab-ee/issues/18

See merge request !73

Merge branch 'feature/import_kerberos_identities_ad' of https://gitlab.com/cernvcs/gitlab-ee into ee-master

Add Open Graph meta tags



See merge request !2192

Adding  CRIME Vulnerability to Security doc

Added an additional page to the security section that goes over current status and fixes for the TLS Protocol CRIME Vulnerability. Also added its respective link at the security README. 

Any suggestions appreciated @JobV @sytses 

See merge request !2102

Clarify LDAP group sync

This documents LDAP group sync details. When group sync is enabled, non LDAP users will not be removed. They may leave on their own. However, no one can add or remove users manually.

cc/ @balameb @axil 

See merge request !85