Edits for 2.1.0

INSTALL

@@ -2,7 +2,7 @@
 Mininet Installation/Configuration Notes
 ----------------------------------------
 
-Mininet 2.0.0
+Mininet 2.1.0
 ---
 
 The supported installation methods for Mininet are 1) using a
@@ -42,7 +42,7 @@ like to contribute an installation script, we would welcome it!)
         sudo rm /usr/local/bin/ovs*
         sudo rm /usr/local/sbin/ovs*
 
-3. Native installation from source on Ubuntu 11.10+
+3. Native installation from source on Ubuntu 12.04+
 
    If you're reading this, you've probably already done so, but the
    command to download the Mininet source code is:
@@ -56,7 +56,7 @@ like to contribute an installation script, we would welcome it!)
 
    `install.sh` is a bit intrusive and may possibly damage your OS
    and/or home directory, by creating/modifying several directories
-   such as `mininet`, `openflow`, `oftest`, `pox`, or `noxcosre`.
+   such as `mininet`, `openflow`, `oftest`, `pox`, etc..
    Although we hope it won't do anything completely terrible, you may
    want to look at the script before you run it, and you should make
    sure your system and home directory are backed up just in case!