Update 44 TCs for MediaRenderer

- Update 44 TCs for MediaRenderer
- Failure analysis: The statuschanged event and rendererlost event cannot be fired

Impacted tests(approved): new 0, update 44, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 37, fail 1, block 6
[webapi]Update 36 nfc TCs

- Change assert_own_property to assert_true
- Change 42 designed cases to approved
- Redesign several TCs
- Modify test description
- Failure analysis: NDEFRecord.id attribute of type expected "string" but got "object"

Impacted tests(approved): new 0, update 36, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 49, fail 1, block 0
[webapi][XWALK-2355] Rewrite the test case checking Navigator.system attribute

- Separate navigator.system and xwalk.experimental.system
  as Crosswalk implements the latter
- Use assert_readonly to check readonly attribute
- Update copyright year to 2014 as it was created in this year originally
Merge pull request #734 from zqzhang/zqzhang/XWALK-2355

[webapi][XWALK-2355] Rewrite the test case checking Navigator.system attribute
[wrt][xwalk-2299] Update case available link

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Android
Android test result summary: Pass 1, Fail 0, Block 0
Merge pull request #736 from wanghongjuan/wanghongjuan/wrt/xwalk-2299

[wrt][xwalk-2299] Update case available link
Merge pull request #717 from zhangjingx/zhangjingx/webapi/nfc_update

[webapi]Update 36 nfc TCs
Merge pull request #725 from yunxliu/yunxliu/webapi/mediaRenderer_modify

Update 44 TCs for MediaRenderer