mergetools: add alternate registry keys for 32bit apps on 64bit O/S Not all applications needed the workarounds, so I did not add alternate keys for every Windows merge application.

filemerge: introduce a 'regkeyalt' merge tool variable This allows us to provide alternate search keys for 64bit operating systems that may have 32bit merge tools installed. Presumably it may find other uses.

merge with stable

wix: drop bin/ folder from MSI installers (issue 2673) Also fixes issue 2658.

zsh completion: remove computed default values from help texts The default encoding and encoding mode are computed at runtime and can vary from system to system. The two remaining default values in the completion help texts (number of directories to strip on import and default bundle name) are fixed in the source code.

merge: remove last traces of fastforward merging bbc97d419b16 introduced fast-forward branch merging. 66ed92ed115a partly removed it again. The fastforward variable would always be false if branchmerge was false, so the fastforward variable makes no difference and we can remove it completely.

merge with stable

subrepo: backout 67fbe566eff1, --force requires svn >= 1.5