Update FlowUp version

[pedrovgs]

Update FlowUp version to 0.3.0. The changelog can be reviewed here

Pull Request Checklist

• [x] Have you read through the contributor guidelines?
• [x] Have you added copyright headers to new files?
• [x] Have you updated the documentation?
• [x] Have you added tests for any changed functionality?

Purpose

We've released a new FlowUp version fixing some known bugs reported by our clients and also adding an inner crash reporter we are going to use as a safety net. Here is the complete changelog

##0.3.0 (2016/3/16) Developing a safety net:

Bugfixes:

Fix a NullPointerException found in the collector implementation.
Fix a race condition found during the SDK initialization.
Features:

Add a safety net we use to catch possible library errors. Based on this new mechanism any exception thrown by the library will be captured and reported to our servers instead of crashing the host app.

[codecov-io]

Codecov Report

Merging #1265 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1265   +/-   ##
=======================================
  Coverage   32.63%   32.63%           
=======================================
  Files         430      430           
  Lines       16233    16233           
  Branches      441      441           
=======================================
  Hits         5297     5297           
  Misses      10936    10936

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[fedefernandez]

QA passed