Added new aliases and plugins for git

aliases/available/git.aliases.bash

@@ -5,6 +5,8 @@ about-alias 'common git abbreviations'
 alias gcl='git clone'
 alias ga='git add'
 alias gall='git add .'
+alias gus='git reset HEAD'
+alias gm="git merge"
 alias g='git'
 alias get='git'
 alias gst='git status'
@@ -19,6 +21,7 @@ alias gpo='git push origin'
 alias gdv='git diff -w "$@" | vim -R -'
 alias gc='git commit -v'
 alias gca='git commit -v -a'
+alias gcm='git commit -v -m'
 alias gci='git commit --interactive'
 alias gb='git branch'
 alias gba='git branch -a'