(docs) Fix some spelling mistakes and one word choice.
Merge branch 'docs/copy-edits' into stable

* docs/copy-edits:
  (docs) Fix some spelling mistakes and one word choice.
(PDB-847) fix PE compatibility bug

This patch deletes the GlobalCheck method that ran before each call to
the PDB indirectors to check that the running version of Puppet was greater
than 3.5. The check is redundant because Puppet 3.5 is a requirement for
puppetdb-terminus and was causing a bug by mis-parsing PE semvers.
(maint/stable) fix documented behavior of =

This fixes some incorrect documentation about the behavior of the equality operator on the lower endpoint.
Merge pull request #1070 from wkalt/maint/stable/equality-operator-fix

(maint/stable) fix documented behavior of =
Merge pull request #1069 from wkalt/ticket/stable/pdb-847-pe-compatibilty

(PDB-847) fix PE compatibility bug
Merge branch 'stable'

* stable:
  (maint/stable) fix documented behavior of =
  (PDB-847) fix PE compatibility bug
  (docs) Fix some spelling mistakes and one word choice.