Minor spelling/grammar corrections

Add ful stop at the end of paragraph.
Fix missing params not being shown in Error message

Bug introduced in 4d920bf
Merge pull request #308 from Alaneor/fix-missing-params

Fix missing params not being shown in Error message
Merge pull request #305 from MightyBranch/patch-1

Minor spelling/grammar corrections
Implement per-client default params

Closes #278