Fix devstack plugin's usage of RECLONE option

Current code redefines "reclone" option and devstack
always reclones manila's code. It should depend on
devstack's localrc definition of reclone

Change-Id: Ie04895a12e348c08329fc5cc1d997710daed056f
Closes-Bug: 1279799
Merge "Fix devstack plugin's usage of RECLONE option"
Merge branch 'modularity' of github.com:aostapenko/manila into modularity
+renamed

Change-Id: Iaf127508e9b9e6a1693963c0ed06ff8e7871cbfd