Reduce log size to 200, on old devices as full log can take 5 seconds
for screen to load
The cell scanning code was split to remove wcdma scanning on Fennec due
to an older API level on Fennec. This is no longer the case.
On 400 error, print the stumble to the log without truncating it
Merge pull request #1114 from garvankeeley/reduce-log-size

Reduce log size to 200, on old devices a full log can take 5 seconds for screen to load
Bump android tools gradle plugin to 0.12.+, and use the robolectric-gradle-plugin 0.12.+

There was an issue with packaging MozStumbler in fdroid due to build.gradle using 0.12.2
and android/build.gradle using 0.10.
Merge pull request #1123 from keverets/robolectric-gradle-plugin-update

Bump android tools gradle plugin to 0.12.+, and use the robolectric-gradle-plugin 0.12.+
Merge pull request #1117 from garvankeeley/1103-400-log-stumble

1103: On 400 error, print the stumble to the log without truncating it
Merge pull request #1115 from garvankeeley/remove-cell-scanner-api-split

Remove separate class for WCDMA scanning (was prev. required for Fennec)