AUSTIN — State Sen. Wendy Davis and Democrats propelling her gubernatorial bid have attracted quite a bit of unwanted attention in the last couple of weeks: national and state media prodding deep into Davis’ biography and the James O’Keefe-infiltration of Battleground Texas, for example. Add this to the list: It appears folks are lining up to file complaints against Davis with the Texas Ethics Commission. There have been two examples this week — and it highlights just why the commission has argued to keep its complaint process private, since the filings are often used to smear opponents before their merits...