Capitalization of proper names

Created by: das-g

@sfkeller noted:

• We still have occurences of "Osmaxx" instead of "OSMaxx" in user-visible strings (e.g. in the <title> HTML element)
• Esri, although being an acronym, has switched to capitalize their name "Esri" instead of the previous "ESRI".
• "Garmin" should be used instead of "GARMIN" or "garmin" (the latter is currently used on the GIS options title)

Use the current official capitalization everywhere. (For user-visible strings.)