Url encode expiry patameter
Added execution time to order and trade create/delete responses.
Fixed small typos and consistency problems.
Updated to reflect order "type" changes
Updated to reflect order "type" changes

List of Transactions types at the bottom still needs to be updated
Update rates.md
Merge pull request #40 from oanda/order-types

Order types
Merge branch 'times' of https://github.com/mrpoulin/apidocs into mrpoulin-times

Conflicts:
	sections/orders.md
Merge pull request #41 from oanda/master

master to fxgame