fixed several issues with surfer grids and made reading a bit faster
removed redundant loop
Merge pull request #390 from rinkk/SurferInputFix

Surfer Input Fix
Install Boost 1.55 on Travis
Update package manager
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Reorganized travis file to have only one apt-get update call.
Merge pull request #392 from bilke/travis-boost1.55

Install Boost 1.55 on Travis
separate test routines and test data for FE types
add Gauss quadrature on triangles
add FeTRI3
add tests for FeTRI3