Calculator: LT translations

Fixed quatation marks
*Improved translations
Change-Id: I14ca6141b6bb1e7b6f982210949ba7a8fa2db8ac
Calculator: Add cube root

Change-Id: I18db8a903ceeeebe8dc9605c6d512922cd6443ed
Calculator: AST translations

Change-Id: I040dfd473e67bea65cd92c921bcc9f83f3ac9c2e
Calculator: DA translation

Change-Id: I3d7538949647131079efd85160b44623a6f5d756
Calculator: don't translate cube root symbol

Change-Id: Ifa7579e46601e2d966807d0bcb984e34d7a442b7