changes in sirius_wiki

- added FACROOT exported value in scripts/bashrc (accomodated
  differences between systems)
- added scripts/updatewiki for wiki update invocations from any folder.
- changes the syntac of updatewiki. run 'updatewiki --help' for help
- added completion keyword for updatewiki in scripts/bashrc
Merge branch 'master' of ssh://github.com/lnls-fac/code

Conflicts:
	scripts/bashrc