Move schema file(s) to more appropriate path
URL encode api scopes

When I tried to add drive.metadata.readonly scope to FusionIndex's
scopes, the getAuthUrl() method threw invalid url exceptions, owing to
invalid characters in the URL; encoding the scopes before building the
url fixes that.
Table list and permission view

Added action on IndexTool to show a user's tables and the perimissions
on them.
Added drive.metadata.readonly scope to apis on FusionTable to support
the permission view
Added a work around for popping up the default browser to grant
permissions, as I don't use the default browser for Aikuma-related
stuff.
Documentation changes
Schema update and tool support

Added ability to add columns to table via tool
Update schema to include new info column (per LP-42)
Added example .aikuma file

The IndexTool uses a dot file in the home directory for info like
access_tokens and the ID of the aikuma_metadata table. Including a
sample so a user can recreate it for their own use.
Change 'info' to 'metadata' in schema
Table modify now drop columns

The modify action on the IndexTool now both adds columns in the schema
not found on the server, and drops columns found on the server not in
the schema specified on the command line.
Merge pull request #267 from parker-ldc/master

Add "metadata" text field to schema