bump version to 1.0.0rc2
# 1. bug fix release beta0: VERSION = "0.9.1b0"; version = (0, 9, 1, 'b0')
# 2. bug fix release: VERSION = "0.9.2"; version = (0, 9, 2, 'release')
-version = (1, 0, 0, "rc1")
-__version__ = "1.0.0rc1"
+version = (1, 0, 0, "rc2")
+__version__ = "1.0.0rc2"
