Merge master to Abhishek

.coverage

coverage_html_report/coverage_html.js

coverage_html_report/index.html

coverage_html_report/jquery.min.js

coverage_html_report/navipy___init___py.html

coverage_html_report/navipy_arenatools___init___py.html

coverage_html_report/navipy_arenatools_cam_calib_py.html

coverage_html_report/navipy_arenatools_cam_dlt_py.html

coverage_html_report/navipy_arenatools_patterns_py.html

coverage_html_report/navipy_arenatools_triangulate_py.html

coverage_html_report/navipy_comparing___init___py.html

coverage_html_report/navipy_comparing_test_py.html

coverage_html_report/navipy_database___init___py.html

coverage_html_report/navipy_database_test_py.html

coverage_html_report/navipy_database_tools_py.html

coverage_html_report/navipy_errorprop___init___py.html

coverage_html_report/navipy_errorprop_test_py.html

coverage_html_report/navipy_io___init___py.html

coverage_html_report/navipy_io_ivfile_py.html

coverage_html_report/navipy_io_opencv_py.html