Bump src/file-server, src/stager

Bump cloudfoundry-incubator/file-server:
  Momchil Atanasov:
     Update routes to add API version
Bump cloudfoundry-incubator/stager:
  Momchil Atanasov:
     Update godeps for file server routes ( Travis Unknown )
use single quotes for stager's compilers flag

work around director's potentially faulty template generation

Signed-off-by: Alex Suraci <asuraci@pivotallabs.com>
Revert "use single quotes for stager's compilers flag"

This reverts commit 707c59ae680bc6d1c965fd0411a5186d9271e3a7.
fix stager compilers default

Signed-off-by: Alex Suraci <asuraci@pivotallabs.com>