RFR: Make fetchAll the opposite of pushAll [v2]

[Robin Westberg]

> Since pushAll pushes all refs, rename fetchAll to fetchAllRemotes and create fetchAll that fetches all refs.

Robin Westberg has updated the pull request incrementally with one additional commit since the last revision:

  Fix failing test

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Changes:
  - all: https://git.openjdk.java.net/skara/pull/905/files
  - new: https://git.openjdk.java.net/skara/pull/905/files/d52d95dc..c96908dd

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=905&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=905&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/905.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/905/head:pull/905

PR: https://git.openjdk.java.net/skara/pull/905