Spelling nits

[pawel-kow]

Section 3.2 vs. Section 8.2.1.2: authorization or authorisation -- pick a spelling and stick with it.

Section 4: "mean of communication" -> "means of communication"

Section 7: "suceeds" -> "succeeds"

Section 8.4.1: "asyncronous" -> "asynchronous"

Section 8.4.3: "primarly" -> "primarily"

Section 8.4.3: "temporarilly_unavailable" -> "temporarily_unavailable"

Section 10.3: "specifed" -> "specified"

Section 10.4: "desireable" -> "desirable"

[PK] Noted, thanks.