Merge pull request #159 from xnakos/master

Fix indentation. Fix minor bug. Refactor a bit for readability.
hydrogen.cpp: fix indentation
Fixed #160: Handle uninitialized transport info correctly
Code cleanup
Updated OSX icon file to support high resolution assets
Merge pull request #163 from elpescado/osx-hires-icon

Updated OSX icon file to support high resolution assets