Fix a compiler error when used in a Swift application

v0.1.5

Missed a couple of places in the last commit

Fix a crash caused by `nil` message passed to `buildPayloadBodyWithMessage`

v0.1.4

v0.1.4

0.1.3

• Optionally enable/disable uncaught exception reporting, (pr#8).
• Added ability to send custom data along with errors/log messages, (pr#9).

0.1.2

• Rename reachability constant to fix linker error if you use https://github.com/tonymillion/Reachability in your app

0.1.1

• Fixed bug that would cause a crash on load if the internal file state somehow became corrupted

0.1.0

• Added internet reachability monitoring so that items aren't attempted to be sent while the phone is not connected to the network.
• Removed log messages from release mode.

0.0.4

• Include bundle identifier in item payloads. This will be required for the symbolication process going forward, please update your dsym upload build phase script to the latest version seen here

0.0.3

• Configuration is now persisted so that crashes are reported with the proper person data on startup.
• New item saving and batching system with retries. Items are saved to disk first, while a separate thread monitors the disk for items to send. Queued items will periodically be batched together and sent by this thread, with failed attempts retried a few times in case of network reachability issues.
• Device code now tracked as the Rollbar backend expects it to be, fixing "Device/OS" graphs.

0.0.2

• Ability to set person data

First release

First version that reports all crashes and allows reporting arbitrary log messages