Minor grammatical, punctuation, and formatting changes

[jprenken]

• Section 1.1: Eliminate passive voice. Correct HTTP links to HTTPS.
• Section 1.2: Change "Certification Practices Statement" to use "Practice" singular, for consistency. Add revision information for these changes.
• Section 1.4.2: Add punctuation and "or" to alphabetical lists, for clarity.
• Section 1.5.1: Eliminate passive voice.
• Sections 1.6.1 & 1.6.2: Reformat to match the CP's formatting style.
• Section 1.6.4: Add an Oxford comma to the document list (as used throughout). Remove the incorrect comma before "of the CA". Correct "these Requirements" to "this CPS".
• Section 3.4: Partially eliminate passive voice (some does reduce ambiguity).
• Section 4.2.1: Eliminate passive voice.
• Section 4.9.2: Eliminate passive voice.
• Section 4.9.3: Eliminate passive voice.
• Section 4.9.8: Eliminate passive voice. Add a comma after "Relying Party", for clarity.
• Section 5.3.4: Rephrase that training is "repeated annually" not "on an annual basis", for brevity.
• Section 5.7.3: Eliminate passive voice.
• Section 5.8: Eliminate passive voice (which makes "review"'s tense correct).
• Section 6.1.6: Change NIST SP link to break out the URL, for consistency.
• Section 6.4.1: Add a second "the" before "place it will be stored", for clarity.
• Section 6.4.2: Replace "a combination of" with "both", for brevity.
• Section 6.6.1: Replace "reception" with "receipt", per common usage.

[bdaehlie]

LGTM!