Issue #88. Display percentage of improvement for cairo/skia appropriately.
Merge pull request #89 from Samsung/Issue_88

Issue #88. Display percentage of improvement for cairo/skia appropriately.
caskbench: Group the skia and cairo test determination codes

Also improve error messages so they're not redundant
caskbench: Fix bounds checking on string variables

Since we're going to concatenate two strings, it's not enough to simply
check the length of the second string.  If it were of length
MAX_BUFFER-1, then the check would pass but concatenating it with
"cairo-" would then result in a MAX_BUFFER+5 length string which would
be out of bounds.
Fix whitespace
canvas_perf: Run the rect testcase
Add several line tests
Add arc test
Add bezier (cubic) curve test
Add quadratic curve test
Add stroked star test
Add solid fill option support for three tests
Add image tests
tests:  Convert - to _ when generating test names
star: Rework to more closely resemble the canvas_perf test algorithm
Issue #95. Use correct radius value for roundrect.
Merge pull request #96 from Samsung/Issue_95

Issue #95. Use correct radius value for roundrect.
Issue #91. Update kinetics to use canvas width and height values.
Issue #91. Update kinetic functions in the tests.
Issue #91. Correct text test case to use the whole canvas space.