Improved readability, grammar

Swapped 'a' for 'an' where necessary.  Changed verb agreement.
Uncluttered scentences.
Fixed 80 column width

Due to fussy programmers that still live with 1972 standards :P
Changed to 3rd person

Changed to 3rd person
Merge pull request #4398 from timhollinger/develop

Improved readability, grammar