Use Travis to publish an apk to alpha track

[jmatsu]

Issue

• close

Overview (Required)

• Unfortunately https://github.com/Triple-T/gradle-play-publisher/ cannot be used because our assembling does not depend on assemble tasks 😢
• So we need to create a publisher logic by ourselves.

Links

[jmatsu-bot]

Try it via https://deploygate.com/distributions/66366c23bc2b426cb24b85a44877975e61d27c47

[jmatsu-bot]

Apk comparision results

Property	Summary
New File Size	8460066 Bytes. (8.07 MB)
File Size Change	-8 Bytes. (-0.01 KB)
Download Size Change	+125 Bytes. (+0.12 KB)
New Method Reference Count	62709
Method Reference Count Change	0
New Number of dex file(s)	1
Number of dex file(s) Change	0

Generated by 🚫 Danger

[jmatsu-bot]

Asserted successfully. 💯

Generated by 🚫 Danger

[jmatsu]

Let me merge