Backfill tests for #micro_deployment

Signed-off-by: Caleb Miles <cmiles@pivotallabs.com>
Made minor reformatting change.
Allow users to pass full path rather than directory for micro deployment

Signed-off-by: Caleb Miles <cmiles@pivotallabs.com>
Allow absolute paths for manifest files

Signed-off-by: Caleb Miles <cmiles@pivotallabs.com>
Updated readme.
Fixed micro deploy when using absolute manifest path
Add conditional warning when deploying a micro bosh

  * When deploying in different relative position than is traditional,
    and additional confirmation prompt will appear

Signed-off-by: Tony Hansmann <thansmann@pivotallabs.com>