Add content for 0.7.0 release

Author: tomv564

messages.json

@@ -8,5 +8,6 @@
     "0.4.1": "messages/0.4.1.txt",
     "0.4.2": "messages/0.4.2.txt",
     "0.5.0": "messages/0.5.0.txt",
-    "0.6.0": "messages/0.6.0.txt"
+    "0.6.0": "messages/0.6.0.txt",
+    "0.7.0": "messages/0.7.0.txt"
 }

messages/0.7.0.txt

@@ -0,0 +1,23 @@
+=> 0.7.0
+
+Features:
+* Support for multiple services per window and document (much help from @Kronuz)
+  * LSP will start server & sync for every enabled config with matching syntax.
+  * Other commands (eg. completion) will prefer the first / most relevant scope.
+* Support for multiple languageIds per server (@Kronuz)
+* Config syntaxes can be shorted to eg. "Julia" instead of the full syntax name.
+* Support newer documentChanges structure (without checking version) for applying edits
+* Greatly improved UI for Rename symbol (@predagnikolic)
+* Optionally use completion textEdit to (@nanoant)
+* Connect to tcp server without starting the server
+
+Bug fixes:
+* Diagnostic messages were not displayed correctly (HTML escaping)
+* Completions more reliable by using same value for trigger and content.
+* Properly unload panels, regions and phantoms when package is unloaded / uninstalled.
+
+Under the hood, more unit testing and in-sublime testing and increased typing coverage.
+
+Plus more contributions, both code, bug reports and suggestions, all very much appreciated!
+
+See https://github.com/tomv564/LSP/releases/tag/0.7.0 for full update details.