Localize strings

[david]

Move strings from .xul files to .dtd, and from .js to .properties.

[dstillman]

(In [748]) Closes #294, Checkbox in search dialog to search subfolders recursively
Addresses #155, Localize strings

• Added "Search subfolders"

• Localized strings in search dialog

Known issue:

#342, "Search subfolders" checkbox should be greyed out until applicable

[dstillman]

(In [797]) Add optional second parameters params to Zotero.getString() to use the stringbundle's formatStringFromName method -- got rid of the silly replace() calls elsewhere in the code

Also localized the "tags" string in the tags tab -- addresses #155, Localize strings

[dstillman]

Closing -- I think we got most of them. If any are left, we'll fix them as we find them.

[dstillman]

a few items on the "Related" tab: the tab title itself is fine, but the contents (number of items related and the "add" button) as well as parts of the dialog that allows you to select items to be related

Also, the "Related: [click here]" and "Tags: [click here]" on Snapshots and Links

[dstillman]

(In [847]) Addresses #155, Localize strings

Localizing some remaining hard-coded strings and get rid of programmatically added colons

Also added .zero strings for various count properties, since plural logic from English won't apply to all languages

[dstillman]

(In [854]) Fixes #339, Saved search dialog doesn't expand when you add new conditions
Addresses #155, Localize strings

• Fixed flex/overflow issues with search dialog
• Localized "Name:" in search dialog
• Disabled hover color for disabled clicky buttons with CSS3 not() selector and removed "unclicky" class