[GitHub] incubator-griffin issue #428: Increase build silence timeout

[toyboxman]

Github user toyboxman commented on the issue:

    https://github.com/apache/incubator-griffin/pull/428
  
    @guoyuepeng @chemikadze 
    
    travis offers cache feature which prevents from downloading maven 
dependencies every time.
    
    I made pr429 to solve this issue.
    https://github.com/apache/incubator-griffin/pull/429


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