Fix incorrect urls in WebSocket tests.

Replaced location.hostname with "127.0.0.1", as it was empty,
what lead to invalid urls.
[wrt] Add apk source for wrt-securitymanu-android-tests
[wrt] Update pack.sh for wrt-webfeaturesmanu-android-tests
[wrt] Update apksource and script for wrt-packagemgtmanu-android-tests
[wrt] Update pack.sh for wrt-manifestspecificmanu-android-tests
[wrt] Update appsource and pack.sh for wrt-extensionmanu-android-tests
[Indexeddb] Changed attribute name from multientry to multiEntry

According to the deprecated standard, IndexedDB's Index object should
have attribute named "multientry". The latest standard says that
this attribute should be named "multiEntry" (e is uppercase).

BUG=XWALK-2203
Merge pull request #566 from kangxu/kangxu/wrt-securitymanu-android-tests/addsource

[wrt] Add apk source for wrt-securitymanu-android-tests
Merge pull request #569 from kangxu/kangxu/wrt/wrt-webfeaturesmanu-android-tests/updateScript

[wrt] Update pack.sh for wrt-webfeaturesmanu-android-tests
Merge pull request #555 from jizydorczyk/XWALK-2204

Fix incorrect urls in WebSocket tests.
Merge pull request #570 from kangxu/kangxu/wrt/wrt-packagemgtmanu-android-tests/updateScript

[wrt] Update apksource and script for wrt-packagemgtmanu-android-tests
Merge pull request #571 from kangxu/kangxu/wrt/wrt-manifestspecificmanu-android-tests/updateScript

[wrt] Update pack.sh for wrt-manifestspecificmanu-android-tests
Merge pull request #573 from kangxu/kangxu/wrt/wrt-extensionmanu-android-tests/update

[wrt] Update appsource and pack.sh for wrt-extensionmanu-android-tests