stylecow plugin fixer

Stylecow plugin to fix automatically some browser issues:

• Fix the old syntax of 'clip: rect()' in ie < 8
• Fix the double margin bug in ie6 on float block elements
• Adds support for min-height in ie<8
• Adds support for opacity in ie<9
• Adds support for ::after, ::before, ::first-line, ::first-letter in ie<9
• Adds support for vmin in ie9
• Adds support for display:inline-block in ie < 8
• Adds support for break-before, break-after, break-inside in webkit
• Add support for resolution media query:
  • Converts all ddpx and dpcm units to dpi (for more compatibility)
  • Converts min/max-resolution to -webkit-min/max-device-pixel-ratio for webkit
• Fix multiple @charset at-rules
• Fix @import position that must be on top of the css (only preceded by @charset)
• etc...

You write:

.foo {
    clip: rect(1, 2, 3, 4);
    min-height: 50px;
    width: 23vmin;
}

And stylecow converts to:

.foo {
    clip: rect(1, 2, 3, 4);
    *clip: rect(1 2 3 4);
    _height: 50px;
    min-height: 50px;
    width: 23vm;
    width: 23vmin;
}

More demos in the tests folder