adding disclaimer about bamboo.io; closes #621
Updated section on mongoDB requirement

I.e., use 10gen's pkgs, not what might be present in the default pkg manager.
Merge branch 'master' of github.com:pld/bamboo into pld-master

* 'master' of github.com:pld/bamboo:
  PLD: downsample farther
  PLD: update docs link
  PLD: try without mp fix
  PLD: do not clean up celery
  PLD: fix reference to io module, it was renamed to readers, closes #68
  PLD: update repo links to use sel and pld over modilabs
  PLD: add link to map
  Fixed travis-CI link
  check update invalid returns success but does not commit or remain pending, closes 596
  return pending updates in info, helper methods for clearing and removing a pending update
  check if upadate is valid in calculate updates, remove pending update if invalid
  add option to clear pending updates

Conflicts:
	docs/index.rst
Merge pull request #69 from SEL-Columbia/master

Doc updates