Added note discouraging the use of cross-platform builds.

Author: mikeller

README.md

@@ -95,13 +95,14 @@ List of possible values of `<task-name>`:
 
 #### Build or release app for one specific platform
 To build or release only for one specific platform you can append the plaform after the `task-name`.
-If no platform is provided, all the platforms will be done in sequence.
+If no platform is provided, the build for the host platform is run.
 
 * **MacOS X** use `yarn gulp <task-name> --osx64`
 * **Linux** use `yarn gulp <task-name> --linux64` 
 * **Windows** use `yarn gulp <task-name> --win32` 
 * **Android** use `yarn gulp <task-name> --android`
 
+**Note:** Support for cross-platform building is very limited due to the requirement for platform specific build tools. If in doubt, build on the target platform.
 
 You can also use multiple platforms e.g. `yarn gulp <taskname> --osx64 --linux64`. Other platforms like `--win64`, `--linux32` and `--armv7` can be used too, but they are not officially supported, so use them at your own risk.
 

gulpfile.js

@@ -123,7 +123,7 @@ function getInputPlatforms() {
     const supportedPlatforms = ['linux64', 'linux32', 'armv7', 'osx64', 'win32', 'win64', 'android'];
     const platforms = [];
     const regEx = /--(\w+)/;
-    console.log(process.argv);
+
     for (let i = 3; i < process.argv.length; i++) {
         const arg = process.argv[i].match(regEx)[1];
         if (supportedPlatforms.indexOf(arg) > -1) {