various doc fixes
- update can no longer be used to merge
- short summary start with lowercase
- add merge to short help list
- fix tests
#!/bin/shhg initecho a > ahg ci -d '0 0' -Amahg an aecho "[ui]" >> $HGRCPATHecho "strict=True" >> $HGRCPATHhg an ahg annotate aecho % should succeed - up is an alias, not an abbreviationhg up