Make viewer compile on standalone linux x86_64

This involves making libllcommon shared, a change
that was not finished for windows/Mac.
More changes are needed to indra/newview/viewer_manifest.py
for those two operating systems, as well as to
indra/copy_win_scripts.

I did not test this on linux 32bit, nor non-standalone
on that OS, either.

I did not check voice (which will very likely not work
anyway on 64bit). And currently the webkit plugin doesn't
work for me, but I'll fix that in a different commit.

indra/lib/python/indra/util/llmanifest.py

@@ -119,6 +119,7 @@ ARGUMENTS=[
         Example use: %(name)s --arch=i686
         On Linux this would try to use Linux_i686Manifest.""",
          default=""),
+	dict(name='artwork', description='Artwork directory.', default=DEFAULT_SRCTREE),
     dict(name='build', description='Build directory.', default=DEFAULT_SRCTREE),
     dict(name='buildtype', description="""The build type used. ('Debug', 'Release', 'ReleaseSSE2' or 'RelWithDebInfo')
         Default is Release """,
@@ -126,6 +127,9 @@ ARGUMENTS=[
     dict(name='branding_id', description="""Identifier for the branding set to 
         use.  Currently, 'secondlife' or 'snowglobe')""", 
          default='secondlife'),
+    dict(name='channel',
+         description="""The channel to use for updates, packaging, settings name, etc.""",
+         default=get_channel),
     dict(name='configuration',
          description="""The build configuration used. Only used on OS X for
         now, but it could be used for other platforms as well.""",
@@ -136,16 +140,13 @@ ARGUMENTS=[
         though it's not strictly a grid, 'firstlook' is also an acceptable
         value for this parameter.""",
          default=""),
-    dict(name='channel',
-         description="""The channel to use for updates, packaging, settings name, etc.""",
-         default=get_channel),
-    dict(name='login_channel',
-         description="""The channel to use for login handshake/updates only.""",
-         default=None),
     dict(name='installer_name',
          description=""" The name of the file that the installer should be
         packaged up into. Only used on Linux at the moment.""",
          default=None),
+    dict(name='login_channel',
+         description="""The channel to use for login handshake/updates only.""",
+         default=None),
     dict(name='login_url',
          description="""The url that the login screen displays in the client.""",
          default=None),
@@ -156,7 +157,9 @@ ARGUMENTS=[
     dict(name='source',
          description='Source directory.',
          default=DEFAULT_SRCTREE),
-    dict(name='artwork', description='Artwork directory.', default=DEFAULT_SRCTREE),
+    dict(name='standalone',
+         description='Set to ON if this is a standalone build.',
+         default="OFF"),
     dict(name='touch',
          description="""File to touch when action is finished. Touch file will
         contain the name of the final package in a form suitable