CrespoParts: Revise strings to bring in-line with conventions

This patch brings consistency to the formatting of the strings with the
rest of the system.

Headers should be capitalized automatically, we only capitalize the first
letter of each string, we don't put periods at the end of description
strings, and so forth.

Ported from CM10, also includes some revision as per Kim Lê's original
suggestions.

Patch Set 2: Cleaned up various locales also.

Patch Set 3: Further cleanup on various locales. Corrections done to
German translations (Thanks to Marco Brohet and Kim Lê).

Patch Set 4: Corrections to Greek translations.

Change-Id: Ia8827c93851d032792832efba33452439f5210e8