Moved trade related stuff into own subdir.
Merge pull request #77 from murrekatt/develop

Moved trade related stuff into own subdir.
cron: remove commented out code
OTCron: remove unused RemoveMarket()
Merge pull request #78 from toxeus/cleanCron

Cron: remove unnecessary stuff
OTCron: cleanup ProcessCronItems()
Merge pull request #79 from toxeus/cleanCron

OTCron: cleanup ProcessCronItems()
OTCronItem: get own ref to serverNym and serverId
OTCron: assign new transaction Nº a priori
Merge pull request #80 from toxeus/cleanCron

Cron: decouple OTCron and OTCronItem
scripts: remove commented out code
Merge pull request #81 from toxeus/deleteDeadCode

scripts: remove commented out code
Moved out GetTypeString() from OTTransaction.
Moved out SetupBoxReceiptFilename functions from OTTransaction.
Moved out LoadBoxReceipt from OTTransaction.
Moved out VerifyBalanceReceipt from OTTransaction into api.
Removed unused function.
Moved out VerifyBoxReceiptExists from OTTransaction.
Comment and formatting cleanup.
Merge pull request #82 from murrekatt/develop

Refactoring OTTransaction