Minor RTL CSS fixes for 3.4

[georgestephanis]

Just going through and patching inconsistencies between the stock styles and the RTL styles.

[georgestephanis]

20754.diff --

Stock had the text as a Serif font, RTL shouldn't be overriding the font-family.
Bold is a font-weight, not a font-style, and RTL shouldn't be changing that even if it were a weight.

RTL vs LTR: ​http://cloud.stephanis.info/1U1h0e2m1G2c27290T1y

[SergeyBiryukov]

Tahoma seems to be the best font for RTL. Some previous tickets on that topic can be found in ticket:19424:11.

[nacin]

Indeed, RTL should be Tahoma. I guess we can remove the bogus font-style, but we should blame it to figure out where and why it was added.

[georgestephanis]

Blame's got it tracked back to Azaozz @ ​http://core.trac.wordpress.org/changeset/17941 -- but that's likely just a overhaul of previous css, and I'm not sure how to trace it back further.

[SergeyBiryukov]

Added by yoavf in ticket:17324:3.2-rtl.diff​.

[yoavf]

Replying to SergeyBiryukov:

Added by yoavf in ticket:17324:3.2-rtl.diff​.

Probably because the original style has italic, and that doesn't work well with RTL scripts (mostly arabic, though it looks kinda crappy and unnatural in hebrew too).

​http://core.trac.wordpress.org/browser/trunk/wp-admin/css/wp-admin.dev.css#L2559

I sometimes use bold where an emphasis is needed, instead of italic.

[georgestephanis]

Yeah, just be aware that bold is -not- a vaild property for font-style. Font-style deals exclusively with the slant. For bold you need to use font-weight.

​http://www.w3.org/TR/CSS21/fonts.html#font-styling

'font-style'
Value:  	normal | italic | oblique | inherit
Initial:  	normal
Applies to:  	all elements
Inherited:  	yes
Percentages:  	N/A
Media:  	visual
Computed value:  	as specified

[yoavf]

Oh, I knew that! Sorry about the lameness.

[nacin]

20754.2.diff​ looks good.

[nacin]

In [20961]:

RTL: For the list table items count, don't italicize the text. Remove a typo that tried to convert the text to bold; normal is the preferred route here so we are not going to set a font-weight. props yoavf, georgestephanis. fixes #20754.

[nacin]

Per IRC and a conversation with yoavf, the italic isn't being used as emphasis, but as a design element. Normal text is plenty — just as long as it isn't italic.