2014-01-22: merge stable into default. We now have a real release process with

merge stable into default. We now have a real release process with an always working stable branch.

diff --git a/.hgsigs b/.hgsigs
--- a/.hgsigs
+++ b/.hgsigs
@@ -4,3 +4,4 @@ d43e1297a6f17c9e4b8ce0e79fc19adc6b2090ca
 9acba39093f5021dc63d6c30d597eff9a3d1fe85 0 iJwEAAEIAAYFAlLLWfYACgkQ3M8NswvBBUiLHAP+Ir/mW2xLB9C9WIQNygjXtzazKFSXzqT07dvlnUKWxJju2YnB5UT1MHOthOlTwa+YCacTWCDypkQJaQOu055ITvPG95GBcrZjf6N5bYcY0B1SCb/av2cl2+pRpcv7BVvJkT0ClRa49x6OYvGGeoIJMC7WTVUWguteMuo4FmW99z0=
 9595c226ac6dfacbba7143aeaadadc2b7b2e9648 0 iJwEAAEIAAYFAlLLYKsACgkQ3M8NswvBBUioxQP+LHym9gVvfUNdW9PqIO9GSaPW6IXo65Mmwi0SZccM2t8HQQMJuckYRC2BQZZrXiY3yM58Dq4FU/krDimBAg7Eq2jdY8SaS5E7vWNIuOMspEVU5WmQ2pfswBqKMVD24tajCCuUgWpjlsWFlBVEdA5cA7ab1xWdKtPvWbgJYcsMolU=
 ef1e317ebf5a6c1d0c77d402fc2d987417b38955 0 iJwEAAEIAAYFAlLMi1oACgkQ3M8NswvBBUhBRAP/Vq0DIQEz8QPufE6Qhrr3AMsBv9UZlBIQbHLWXOPy+pr2cbUETJ55CfZXxGAtfCMSIZ7BFVn7HT1mlgcbfUKZkMRcP8yBatDeBIzVXOafJOLgCaizsQCDSa6a5VwSMGBLqdD2Cz4w2UeRH97vE/5Q7+JtmqkAn6nrPzqwyVy4QPs=
+1d95b99da08b25917847702a382c691b5bd1de69 0 iJwEAAEIAAYFAlLfF2IACgkQ3M8NswvBBUhaPgP7BasnAMXUDcRJRSPdfH0vE2/+lYYpFR2w8s5k/RK134EG5+9nnehOohhB5mVLCxhXP7miGhVNfDZmfR3csOH2fjBmAhpjDcRmn1aqgOPQ+RoWqIV4ZVpaeMPE49OOefpxAvHaWlzajo/fd99Fwckg+VhqXBciWlnHyTpCYSlk8Ac=
diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -7,3 +7,4 @@ c5c1f8a58c298f6894ed4386e9df6866a7e629a2
 ce8ccd40ef936710e76200d2ee138535e4ab0fb4 v0.5.1
 00de78a95055f846906d57b1a094a1c3e6bb2dbd v0.5.2
 df64e82e0920bdd079d77cd4829bac9d30461a25 v0.5.3
+f9c6e637d91d107bbf2ad807f30dc04150ddb251 v0.5.4