Version 0.0.15

• General: refactored all commands into "cli" package (8115a787)
• General: reimplemented all tests into golang, added coverage tests (4390b11)
• General: better error responses for jsonrpc protocol (b7ca4a8)
• iOS: automatically start webdriver agent if installed on device (02025dd)
• iOS: automatically start port forwarding for port 8100 using a dynamic source port (02025dd)
• iOS: automatically start userland tunnel for iOS 17 (02025dd)
• iOS: fixed bad parsing of go-ios output if warning was printed (2150f27)
• iOS: use "ios" and fallback to "go-ios" (2150f27)
• iOS: support multiple custom gestures to be passed to device (b7ca418)
• Simulator: automatically donwload webdriveragent for simulator (0dbe361)
• Simulator: automatically install webdriveragent on simulator if needed (0dbe361)