Fix memory leak

From git logs:

Fix possible memory leak and enable StrictMode on sample app

• Close all input streams after using them.
• Enable StrictMode with a policy to shutdown the app and print stack if there is an error.

v0.1.6

Fix Issue #8

v0.1.5

• Allow executing a RadarSession by using the RadarService.
• Deprecate RadarSessionTask in favor of RadarService.
• Add network type headers to report.

v0.1.4

Request that large test objects be returned in the radar.cedexis.com providers.json response. User settings allow these to be measured or not measured when on Wifi.

v0.0.12

Reference java-radar v0.0.10

v0.0.11

Handle null intent.

v0.0.10

Update java-radar dependency to v0.0.8

v0.0.9

Update java-radar dependency

Update java-radar library

v0.0.8

Tagged v0.0.8

v0.0.7

Downgrade to android-support-v4.jar rev 19 and compile with Java 1.6