Fixed misspellings of common words

Fixed misspelling of common words found by the 'misspellings' tool.

Closes-Bug: #1257531
Change-Id: Ic6bedbce3a242d6e1340ecc442d29605af8be9a4
Updated from global requirements

Change-Id: Ibca24abb665e28ebcb2010d036467c3cec7c7541
Add -U to pip install command in tox.ini

Ask pip to upgrade packages in the virtualenv so that a long-lived
virtualenv is still kept up to date as external dependencies change.

Change-Id: Id1e83aa5dd7c39d4827baeb39827b0ddeb8b6d4a
Fixes trove help command

Reason:
- trove help output misplaces the position of "<subcommand> ..."
  from bottom to top.
- This behavior is because of formatting done to
  Print positionals before optionals.

Changes:
- Sequence fixed in trove help output.

Change-Id: I8aff2eec9f915a7ec1960b67ee7ba8423624aad6
Closes-Bug: #1260332
Merge "Add -U to pip install command in tox.ini"
Merge "Updated from global requirements"
Merge "Fixed misspellings of common words"
Merge "Fixes trove help command"