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
OTAgent: replace OTCleanup with std::unique_ptr
Merge pull request #83 from toxeus/removeOTCleanup

OTAgent: replace OTCleanup with std::unique_ptr
OTAssetContract: replace OTCleanup with std::unique_ptr
Merge pull request #84 from lclc/otassetcontractcleanup

OTAssetContract: replace OTCleanup with std::unique_ptr
OTItem: replace OTCleanup with std::unique_ptr
Merge pull request #85 from lclc/otitemcleanup

OTItem: replace OTCleanup with std::unique_ptr
opentxs-core: move crypto files to own subdir
opentxs-core: move crypto headers to own subdir
Migrate swig wrappers out to their individual modules

See the ./wrappers subdirectory for wrapper modules with an example in ./wrappers/example. Moved swig subdirectory to ./wrappers/old_swig, as it is no longer used in the build process, but is needed for further migration work and my be removed entirely after all modules are migrated into their own subdirectories
.
Merge pull request #87 from toxeus/crypto

opentxs-core: move crypto files to own subdir
Break dependency on transactionType to prepare move out of helper function.
Moved out LoadAbbreviatedRecord from OTTransaction.