Merge pull request #77 from erdomke/master

.Net 3.5 Support and Rendering Improvements (Markers, TSpans, Paths, etc.)
Revert ".Net 3.5 Support and Rendering Improvements (Markers, TSpans, Paths, etc.)"
Merge pull request #78 from vvvv/revert-77-master

Revert ".Net 3.5 Support and Rendering Improvements (Markers, TSpans, Pa...
Merge pull request #79 from erdomke/master

.Net 3.5 Support and Rendering Improvements (Markers, TSpans, Paths, etc.) + Working Build!
Support for 'slice' and fixed '...Max' in aspect ratio
Merge pull request #80 from bcbarnes-gmx/Devel

Support for 'slice' and fixed '...Max' in aspect ratio
Gradient Improvements

- Added support for the "gradientTransform" attribute on both linear and
  radial gradients. The matrix in this attribute needs to be applied to
  attributes with coordinate values on the gradient element in order to
  transform them into the correct coordinate space.

- Added support for a value of "pad" for the "spreadMode" attribute on
  both linear and radial gradients. This is the default value but was not
  implemented correctly. In order to implement, we examine the properties
  of the gradient along with the element to which the gradient is being
  applied to determine if we need to expand the bounds of the gradient to
  fill the element. If so, we do so and adjust the color stops and
  positions so they are correct for the new gradient bounds.

- Divided ISvgStylable into ISvgBoundable and ISvgStylable. The
  SvgUnit.ToDeviceValue method just needs bounds so it can take
  ISvgBoundable. Moved SvgDocument.GetDimensions() to SvgFragment and made
  SvgFragment ISvgBoundable.

- Fixed a bug in SvgFragment.PushTransforms where it was calling the
  SvgUnit.ToDeviceValue overload that takes no parameters. This overload
  doesn't work if the value being converted is a percentage. (The overload
  should probably be removed entirely, but we didn't take that on in this
  commit.)

- Fixed an issue in SvgGroup.Bounds where a child with empty bounds would
  cause the group's bounds to be reported as empty.

- Fixed broken build by adding missing SvgMarker.MarkerUnits property.

- Converted files that we touched with mixed tabs and spaces to spaces.
  Also removed unused usings from files we touched.

- Converted SvgLinearGradientServer to use properties without backing
  fields for X1, Y1, etc. in order to match SvgRadialGradientServer.

- Moved default value assignments into constructors for consistency.
Merge pull request #85 from articulate/GradientTransform

Gradient Improvements
fixed bug in rgb color parsing
color converter now uses invariant culture to parse
Add support for unknown svg element and non svg element: useful for not removing unknown xml tag from document when loading a file
Merge pull request #86 from Guymestef/master

Add support for unknown svg element and non svg element: useful for not ...
Colors Fix, Perf Improvement, Thread Safety

-Fixes issues with colors not parsing correctly. Saving an SvgDocument
resulted in RGB color values being converted to well known color names.

-Compile regex statements to improve performance.

-Make rendering a document threadsafe.
Merge pull request #2 from articulate/ColorFix

Colors Fix, Perf Improvement, Thread Safety
Merge pull request #87 from articulate/master

Colors Fix, Perf Improvement, Thread Safety
Fix for GDI crash if stroke-dasharray contains value<=0

GDI Pen was crashing with some bad (Adobe Illustrator) data that had: stroke-dasharray="10,10,0"
Merge pull request #88 from csmoore/master

Fix for GDI crash if stroke-dasharray contains value<=0
Attempting to fix merge conflicts