replace identify icon by svg
Use extents table for ms sql layers for faster loading

- Also move feature count logic
Use qRound. Fix windows build
Merge pull request #685 from 3nids/identifyicon

SVG icon for identify action
translation update: es by Carlos
Translation String update for upcoming 2.0 Release
Merge branch 'master' of https://github.com/qgis/Quantum-GIS into ja_ts_20

Conflicts:
	i18n/qgis_ja.ts