#162 Horizontal and Vertical Line test failed.

[Hans-Martin Will]

Fololw up issue after updating rounding rules in vertex
transformation (clipping bug):

Horizontal and Vertical Line test failed.
File - C:\src\ogles\conform\conform\linehv.c, line
- 289.
Line (17, 23) (12, 23) (width of 1) is not
horizontal.

linehv.c

[Hans-Martin Will]

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user_id=618887

Moved rounding of coordinates into inline-wrapper around
rasterizer call.