fix install script

bin/install-dotfiles.sh

@@ -6,15 +6,15 @@ FILES=".bash_aliases .bash_prompt .bashrc .profile bin .vimrc"
 for FILE in $FILES; do
 
     # remove old versions
-    if [ -d "~/$FILE" ] ; then
-        rm -r ~/$FILE
+    if [ -f "$HOME/$FILE" ] ; then
+        rm -r $HOME/$FILE
     fi
 
     # symlink files
-    ln -s $PWD/$FILE ~/$FILE
+    ln -s $PWD/$FILE $HOME/$FILE
     echo "$(tput setaf 64)✓$(tput sgr0) Symlink created to $(tput setaf 37)$FILE$(tput sgr0)"
 
 done
 
 # source what we just created
-source ~/.profile
+source $HOME/.profile