new commands, updated gitconfig

+ e opens $EDITOR (thanks @holman)
+ h is same as 'c' but in home directory (thanks @holman)
+ updated gitconfig

git/git.zsh

@@ -14,7 +14,7 @@ alias grm='git rm'
 alias grn='git-rename'
 alias glog="git log --graph --pretty=format:'%Cred%h%Creset %an: %s - %Creset %C(yellow)%d%Creset %Cgreen(%cr)%Creset' --abbrev-commit --date=relative"
 
-alias git-amend='git commit --amend -C HEAD'
+# alias git-amend='git commit --amend -C HEAD'
 alias git-undo='git reset --soft HEAD~1'
 alias git-count='git shortlog -sn'
 alias git-undopush="git push -f origin HEAD^:master"