Include a favicon for BuddyPress Trac

[netweb]

The favicon already exists here ​https://buddypress.org/favicon.ico and it just needs to be hooked up to BP Trac

bbPress' was fixed up in #753 though there's no dotorg changeset reference and the Trac pieces here are not open sourced yet.

[nacin]

The shared components that make up trac.ini files are open sourced. The individual trac.ini files for each Trac are not, as they contain secrets, absolute paths, etc. There's no reason they couldn't, but they have been stripped of anything notable.

For example, here is meta.trac's:

 ini
[inherit]
plugins_dir = 
templates_dir = resources/templates
file = secrets.ini,
       conf/common.ini,
       conf/intertrac.ini,
       conf/notifications.ini,
       conf/workflow-core.ini

[notification]
smtp_always_cc = wp-meta@lists.wordpress.org
smtp_always_bcc = svn@localhost.localdomain
smtp_enabled = true
smtp_from = noreply@wordpress.org
smtp_replyto = wp-hackers@lists.automattic.com
smtp_server = localhost

[project]
descr = Making WordPress.org
footer = A <a href="http://wordpress.org/">WordPress</a> Project
icon = trac.ico
name = Making WordPress.org
url = https://meta.trac.wordpress.org/

[ticket]
default_component = General
default_milestone = Awaiting Review
default_priority = normal
default_severity = normal
default_version = 

[trac]
base_url = https://meta.trac.wordpress.org/
database = sqlite:db/trac.db
default_charset = utf-8
permission_policies = DefaultPermissionPolicy, LegacyAttachmentPolicy
permission_store = DefaultPermissionStore
repository_dir = wp-meta
repository_type = svn

[netweb]

Thanks :)

Might look toward more open sourcing when Trac gets added to the WordPress Meta Environment ;)