CB-5346 Fix and cleanup broken Android unit test

- Found stale cordova.js in the test project. Changed ant script to copy in
  a fresh one in the pre-build stage. Removed stale copies from git, added
  to .gitignore. This is what was causing the test failure when sending
  javascript to the webview.
- Found almost-stale copy of device plugin, did the same as above.
- Fixed spacing in log messages in CordovaWebView.
- Updated README.md with current information.
- Removed dollar signs that were previously accidently appended to the license.
- Added cordova version to html pages, next to the other metadata.
- Fix incorrect separator in the viewport meta tag.
- Changed old-style <log> tag to <preference name="loglevel"> in config.xml.
- In BackButtonMultiPageTest, increased the TIMEOUT so the deviceready event
  can trigger the referenced javascript, improved the setup() method to
  explicitly load the starting point.

test/README.md

@@ -24,11 +24,11 @@ These tests are designed to verify Android native features and other Android spe
 
 ## Initial Setup ##
 
-Before running the tests, they need to be set up.
+There really isn't any manual setup to do. The ant script takes care of that.
+You don't even need to compile cordova-x.y.z.jar or copy it, because 
+project.properties has a library reference to ../framework.
 
-0. Copy cordova-x.y.z.jar into libs directory
-
-To run from command line:
+To run manually from command line:
 
 0. Build by entering `ant debug install`
 0. Run tests by clicking on "CordovaTest" icon on device
@@ -38,7 +38,7 @@ To run from Eclipse:
 0. Import Android project into Eclipse
 0. Ensure Project properties "Java Build Path" includes the lib/cordova-x.y.z.jar
 0. Create run configuration if not already created
-0. Run tests 
+0. Run As -> Android JUnit Test
 
 ## Automatic Runs ##
 
@@ -46,5 +46,3 @@ Once you have installed the test, you can launch and run the tests
 automatically with the below command:
 
     adb shell am instrument -w org.apache.cordova.test/android.test.InstrumentationTestRunner
-
-(Optionally, you can also run in Eclipse)