[TIMOB-25442] Android: Updated Titanium SDK and build tools to compile with Java 7

[jquick-axway]

JIRA:

• https://jira.appcelerator.org/browse/TIMOB-25442
• https://jira.appcelerator.org/browse/TIMOB-25448

Summary:

• Updated core Android Titanium SDK code to use Java 7. (Was limited to Java 6.)
• Updated CLI to build Android modules with Java 7. (Was limited to Java 6.)

---

Titanium SDK Java 7 Test:

1. Build/package/install the "titanium_mobile" SDK for Android.
2. Verify that build succeeded without any Java compiler errors. (Note that "TiApplication.java" is now using a Java 7 try-resource feature which would cause a compiler error in Java 6.)
3. Build and run a Titanium app on Android.
4. Observe the Android log on startup and verify that a message similar to the below gets printed on startup. (The date will match the time you compiled the SDK.)
   [INFO] : TiApplication: (main) [43,43] Titanium 7.0.0 (2017/10/26 15:22 undefined)

---

Module Java 7 Test:

1. Build/package/install the "titanium_mobile" SDK for Android.
2. Run the test described in TIMOB-25448 on Mac.
3. Run the same test on Windows.

[build]

	Fails
🚫	🔬 There are library changes, but no changes to the unit tests. That's OK as long as you're refactoring existing code, but will require an admin to merge this PR. Please see README.md#unit-tests for docs on unit testing.

	Messages
📖	👍 Hey!, You deleted more code than you added. That's awesome!

Generated by 🚫 dangerJS

[cb1kenobi]

CR'd and it looks good to me.

[sgtcoolguy]

QE: Good to merge without unit test changes.

[garymathews]

LGTM!

[mukherjee2]

Passed FR with this environment:
Node Version: 6.11.5
NPM Version: 3.10.10
Mac OS: 10.13
Windows OS 10.0.14393
Appc CLI: 7.0.0-master.6
Appc CLI NPM: 4.2.11-2
Titanium SDK version: 7.0.0 / PR-9562

I followed the steps in the original ticket to reproduce, and I was able to validate the fix.

[mukherjee2]

@sgtcoolguy can you please merge? As per @jquick-axway unit tests are not required. Thanks.