When it comes to downtown Austin, almost everyone loves the Warehouse district. It's historic, iconic, and full of life. Its small scale is a nice counterbalance to the surrounding towers. The area, though much smaller than it used to be, is widely known and a common entertainment destination for residents and visitors.So it will be mixed emotions that downtown dwellers will greet yesterday's news of a new 30-story shiny glass office tour planned for one of the key warehouse district blocks. The tower, which will certainly block many Austonian northwest views, will contain 18 stories of . . .