Added device log

Author: ikoevska

README.md

@@ -204,6 +204,7 @@ Run `tns help` to list all available commands. Run or `tns <Command> --help` to
 * `deploy <Platform> [--device <Device ID>]` deploys an already built application on connected device.
 * `run <Platform> [--device <Device ID>]` executes `prepare`, `build`, and `deploy`.
 * `device` lists connected devices, including any running Android Virtual Devices or Genymotion virtual devices.
+* `device log` opens the log stream for the selected device.
 * `device run` runs a selected application on a connected device.
 * `device list-applications` lists the installed applications on all connected devices.
 * `feature-usage-tracking` configures anonymous feature usage tracking.

resources/help.txt

@@ -23,6 +23,7 @@ General commands:
                                     This is shorthand for prepare, build, and deploy.
     debug                           Debugs your project on a connected device or in the native emulator, if configured. 
     device                          Lists all recognized connected physical or virtual device.
+    device log                      Opens the log stream for the selected device.
     device run                      Runs the selected application on a connected device.
     device list-applications        Lists the installed applications on all connected devices.  
     feature-usage-tracking          Configures anonymous feature usage tracking.
@@ -540,6 +541,20 @@ Options:
 
 --[/]--
 
+--[device|log]--
+Usage:
+    $ tns device log --device <Device ID>
+    $ nativescript device log --device <Device ID>
+
+Opens the device log stream for a selected connected device. 
+
+<Device ID> is the device index or identifier as listed by $ tns device
+
+Options:
+   --device - If multiple devices are connected, sets the device for which you want to stream the log in the console.
+
+--[/]--
+
 --[device|list-applications]--
 
 Usage: