fixed forgotten object bounding box
If the focal point isn't given at all, its assumed to be at the same place as the center point.

http://www.w3.org/TR/SVG/pservers.html#RadialGradientElementFXAttribute
color blend: fixed gradient's stops order
fixed color blend for linear gradients
BugFix: When an Text element was empty, with no text inside, an InvalidArgumentException rised.
made svg transform collection a proper ICloneable
avg fragment now fires attribute changed events
try  unboxed checks for attribute changed events
svg transforms can now be compared and return correct results
now doing element wise matrix comparison
remove uses depth first recursion for children
svg line now fires all attribute changed events
view box has correct equals check now
Fixed Bound Calculation

To get the Bounds, the Union method of the rectangle must be called only when the first rectangle has been set. If the Renctangle is empty, use the first children's Bound, as a rectangle.
Merge pull request #60 from HarkDev/master

Fixed Bound Calculation
Merge pull request #57 from Bigous/master

BugFix - Text element with no text rising exception
Added support for dx and dy properties for text. A bit of plumbing was already in place so I completed that.
http://www.w3.org/TR/SVG11/text.html#TextElementDXAttribute
http://www.w3.org/TR/SVG11/text.html#TextElementDYAttribute
Added trim character on ValidateFontFamily

Some programs (like InkScape) use single quotes for the font-family.
I've added the single quote character, to the trim.
Merge pull request #56 from andreichuk/changes

Changes
Merge pull request #62 from tobiasoort/master

Added support for dx and dy properties for text.