distinct URI for suspend/delete

/users/?suspend=<username>  =>  /users/suspend/<username>
/users/?delete=<username>   =>  /users/delete/<username>
added possibility to delete users
added granting/revoking of admin privileges

any admin (username 'admin' or account_type 'admin') can toggle the
account_type of any other non-guest user from 'admin' to 'user' and vice-versa
the "real" admin (username 'admin') is of course unaffected
Merge branch 'master' into usermgmt
renamed ambiguous single letter variable
removed redundant strips. thereby reducing number of function calls
fixed doc strings to reflect new changes
removed redundant strips
Expand tildes in upload argument and throw an error if file doesn't exist
fix #76
Use next parameter to redirect if logged in
use on function to bind events to dynamically created dom elements
bind the events to the right css class
Merge pull request #81 from jsyeo/dynamic_events

use on function to bind events to dynamically created dom elements
Merge pull request #77 from gvol/upload-expand-tilde

Expand tildes in upload argument
Merge pull request #78 from gvol/redirect-if-loggedin

fix #76
Merge branch 'master' into usermgmt
Merge pull request #71 from jsyeo/remove_strips

Remove redundant strip() function calls
Version bump to 0.10.1
Merge branch 'master' into usermgmt
add temporary install docs for development of sagenb