Rename api to client.
Merge pull request #97 from murrekatt/develop

Rename api to client.
OTMarket: replace OTCleanup with std::unique_ptr
Merge pull request #98 from lclc/otmarketcleanup

OTMarket: replace OTCleanup with std::unique_ptr
Moved function into API.
Move OTLedger::GetInstrument into Client Helpers class
Merge pull request #101 from lclc/otledgerOTPaymentMoving

Move OTLedger::GetInstrument into Client Helpers class
Delete .rc files
Merge pull request #96 from lclc/deleteRCFiles

Delete .rc files
Fixed Windows build
Merge pull request #90 from BugFreeSoftware/fix_windows

Fixed Windows build
Moved out function to get rid of OTPayment in OTPseudonym.
Include cleanups.
Merge pull request #102 from murrekatt/develop

OTPayment decoupling and include cleanup.
OTTrade: : replace OTCleanup with std::unique_ptr