Button: white pseudo-borders appearing inside of buttons on IE

[alex]

on IE only, a bleed through background of 1px (i.e., an "inner border") makes buttons look bad.

Also, the pseudo-outdent styles applied to the regular border need to go.

[alex]

(In [13737]) fixing EOL and svn:eol-style attribute. Grrr. Refs #6754

[alex]

(In [13754]) updates to button templates, css, and tests. These changes:

• remove the pseudo-white border around buttons in IE
• fix internal padding and margin issues on IE
• remove the unsightly black border around focused button widgets on IE
• normalize spacing on buttons across browsers
• update the test pages to show how things compare to native buttons x-browser

Further work may be in order to again normalize widget height with native widget height on OS X, but for IE things look/work much better and are more consistent across browsers.

Fixes #6775. Fixes #6754

[bill]

Rolled back in [13856] since IE7 and Nihilo/Soria? were broken, see #6870 (possible fix for IE problem) and #6843, respectively. Please check in patch that works for all themes and IE7.

[alex]

fixed in [14015]