If formula equal zero it is also error.

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branch : develop
Little change in Windows .manifest file.

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branch : develop
rename : src/app/share/resources/valentina.manifest => src/app/share/resources/valentina.exe.manifest
Refactoring visualization tool line.

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branch : develop
rename : src/app/visualization/vgraphicslineitem.cpp => src/app/visualization/vistoolline.cpp
rename : src/app/visualization/vgraphicslineitem.h => src/app/visualization/vistoolline.h
Visualization for VToolEndLine.

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branch : develop
Sometimes need convert from different unit that in a pattern.

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branch : develop
Correct file name if user did not specify correct suffix.

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branch : develop
Hide saving to ps and eps format if don't installed pdftops.

--HG--
branch : develop
Icon application-exit.

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branch : develop
Menu File->Export pattern (layout).

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branch : develop
Visualization for VToolAlongLine.

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branch : develop
Remove border around qgraphicsitem when selected.

--HG--
branch : develop
Refactoring.

--HG--
branch : develop
Visualization for VToolBisector.

--HG--
branch : develop