Author: Thomas Broyer <t.broyer@gmail.com>

Remove Checkstyle custom checks.

- OrderCheck: we decided to get rid of it.
- FieldCheck: replaced by a simple MemberName check
- GwtHeaderCheck: replaced by a RegexpHeader check with a nasty regexp.
The check is slightly relaxed with the optional (or repeated) lines
(required to support both 80-char and 100-char long lines), but the
regexps themselves are strengthened with explicit start and end of line
markers (a few files then needed fixing).

Change-Id: I9baddfaaab27180ed0a5a75be2708497fd13ccba
Review-Link: https://gwt-review.googlesource.com/#/c/1051/


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@11343 8db76d5a-ed1c-0410-87a9-c151d255dfc7
21 files changed