Updated README with useful content

Now this thing is actually useful (it took three years (THREE YEARS))

README.md

@@ -2,3 +2,100 @@ ImageOnMap
 ==========
 
 Repo for ImageOnMap, a bukkit plugin
+
+
+## Features
+
+ImageOnMap allows you to load a picture from the Internet to a Minecraft map.
+
+- Loads an image from a URL onto a map. PNG, JPEG and GIF are supported.
+- These images will be saved on your server and reloaded at restart.
+- Big pictures will be cut automatically into several parts! As example a 1024x1024 picture will be cut in 16 maps.
+- Your image will be centered.
+- You can put your map in an item frame.
+
+This plugin is a free software lisensed under the GNU General Public License (version 3 or above). The source code is published on GitHub. You can also get unstable development builds here.
+
+
+## Quick guide
+
+- Ensure that you have a free slot in your inventory, as ImageOnMap will give you a map.
+- Type `/tomap URL`, where URL is a link to the picture you want to render (see the section below).
+- Enjoy your picture! You can place it in an item frame to make a nice poster if you want.
+
+
+## Commands and Permissions
+
+### `/tomap <url>`
+
+Renders an image and gives a map to the player with it.
+
+- This command can only be used by a player.
+- The link must be complete, do not forget that the chat limit is 240 characters.
+- You can use an URL shortener like tinyURL or bitly.
+- If you want a picture in one map, type resize after the link.
+- Permission: `imageonmap.userender`
+
+
+### `/maps`
+
+Opens a GUI to see, retrieve and manage the user's maps.
+
+- This command can only be used by a player.
+- Opens a GUI listing all the maps in a pagnated view.
+- A book is displayed too to see some usage statistics (maps created, quotas).
+- An user can retrieve a map by left-clicking it, or manage it by right-clicking.
+- Maps can be renamed (for organization), deleted (but they won't render in game anymore!), or partially retrieved (for posters maps containing more than one map).
+
+
+### `/maptool <new|list|get|delete|explore|migrate>`
+
+Main command to manage the maps. The less used in everyday usage, too.
+
+- The commands names are pretty obvious.
+- `/maptool new` is an alias of `/tomap`.
+- `/maptool explore` is an alias of `/maps`.
+- `/maptool migrate` migrates the old maps when you upgrade from IoM <= 2.7 to IoM 3.0. You HAVE TO execute this command to retrieve all maps when you do such a migration.
+
+
+
+##Configuration
+
+```yaml
+# Plugin language. Empty: system language.
+# Available: en_US (default, fallback) and fr_FR.
+lang:
+
+# Allows collection of anonymous statistics on plugin environment and usage
+# The statistics are publicly visible here: http://mcstats.org/plugin/ImageOnMap
+collect-data: true
+
+# Images rendered on maps consume Minecraft maps ID, and there are only 32 767 of them.
+# You can limit the maximum number of maps a player, or the whole server, can use with ImageOnMap.
+# 0 means unlimited.
+map-global-limit: 0
+map-player-limit: 0
+```
+
+## New features in the 3.0 version
+
+The 3.0 release is a complete rewrite of the original ImageOnMap plugin, now based on zLib, which adds many feature and fixes many bugs.
+
+This new version is not compatible with the older ones, so your older maps will not be loaded. Run the `/maptool migrate` command (as op or in console) in order to get them back in this new version.
+
+You will find amongst the new features:
+
+- New Splatter maps, making it easy to deploy and remove big posters in one click !
+- No more item tags when maps are put in item frames !
+- Internationalization support (only french and english are supported for now, contributions are welcome)
+- Map Quotas (for players and the whole server)
+- A new map Manager (based on an inventory interface), to list, rename, get and delete your maps
+- Improvements on the commands system (integrated help and autocompletion)
+- Asynchronous maps rendering (your server won't freeze anymore when rendering big maps, and you can queue multiple map renderings !)
+- UUID management (which requires to run `/maptool migrate`)
+
+
+
+## Data collection
+
+We use metrics to collect basic informations about the usage of this plugin. This can be disabled by setting "collect-data" to false in config.yml.