Bump version for v3.0-beta1 release

Feature complete, except for plugin support for backend store of reset
cause.  E.g., be able to store cause in i2c RTC alarm registers to not
wear out flash.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT(watchdogd, 3.0-dev, https://github.com/troglobit/watchdogd/issues)
+AC_INIT(watchdogd, 3.0-beta1, https://github.com/troglobit/watchdogd/issues)
 AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz subdir-objects])
 LT_INIT