Bump cling version to 1.0~dev.

Author: vgvassilev

interpreter/cling/VERSION

@@ -1 +1 @@
-0.9
+1.0~dev

interpreter/cling/docs/ReleaseNotes.md

@@ -2,7 +2,7 @@ Introduction
 ============
 
 This document contains the release notes for the interactive C++ interpreter
-Cling, release 0.9. Cling is built on top of [Clang](http://clang.llvm.org) and
+Cling, release 1.0. Cling is built on top of [Clang](http://clang.llvm.org) and
 [LLVM](http://llvm.org>) compiler infrastructure. Here we
 describe the status of Cling in some detail, including major
 improvements from the previous release and new feature work.
@@ -11,7 +11,7 @@ Note that if you are reading this file from a git checkout or the main
 [Cling web page](https://rawgit.com/root-project/cling/master/www/index.html),
 this document applies to the *next* release, not the current one.
 
-What's New in Cling 0.9?
+What's New in Cling 1.0?
 ========================
 
 Some of the major new features and improvements to Cling are listed
@@ -20,30 +20,48 @@ infrastructure are described first.
 
 External Dependencies
 ---------------------
-* Upgrade to LLVM 9. LLVM 9 brings to cling better stability, full C++17 support
-  and CUDA 10 support.
+* Upgrade to LLVM r0000000.
 
+Major New Features
+------------------
+* A major new feature
 
 Misc
 ----
-* Improve CUDA device compiler such as enabling sm level configuration and
-  and add `--cuda-path` option.
-* Improve the DefinitionShadower with respect to C++ Modules
-* Embed [Vc](https://github.com/VcDevel/Vc) modulemap file
-* Build the available cling plugins by default.
-* Reduce dependence on custom clang patches.
+* A misc feature
+
+Experimental Features
+---------------------
+* An experimental feature
+
+Jupyter
+-------
+* A Jupyter feature
 
 
 Fixed Bugs
 ----------
-[ROOT-10962](https://sft.its.cern.ch/jira/browse/ROOT-10962)
-[ROOT-7775](https://sft.its.cern.ch/jira/browse/ROOT-7775)
-[ROOT-10703](https://sft.its.cern.ch/jira/browse/ROOT-10703)
-[ROOT-10962](https://sft.its.cern.ch/jira/browse/ROOT-10962)
-[ROOT-GH-7021](https://github.com/root-project/root/issues/7021)
-[ROOT-GH-7090](https://github.com/root-project/root/issues/7090)
-[ROOT-GH-7657](https://github.com/root-project/root/issues/7657)
-[CLING-GH-399](https://github.com/root-project/cling/issues/399)
+[ROOT-XXXX](https://sft.its.cern.ch/jira/browse/ROOT-XXXX)
+
+<!---Get release bugs
+git log v0.9..master | grep 'ROOT-' | sed -E \
+  's,^.*(ROOT-[0-9]+).*$,[\1]\(https://sft.its.cern.ch/jira/browse/\1\),' | \
+  sort | uniq
+--->
+<!---Standard MarkDown doesn't support neither variables nor <base>
+[ROOT-XXX](https://sft.its.cern.ch/jira/browse/ROOT-XXX)
+--->
+
+<!---Additional Information
+----------------------
+A wide variety of additional information is available on the
+[Cling web page](http://root.cern/cling). The web page contains versions of
+the API documentation which are up-to-date with the git version of the source
+code. You can access versions of these documents specific to this release by
+going into the “clang/docs/” directory in the Cling source tree.
+
+If you have any questions or comments about Cling, please feel free to contact
+us via the mailing list.--->
 
 
 Special Kudos
@@ -53,12 +71,7 @@ listed in the form of Firstname Lastname (#contributions):
 
 FirstName LastName (#commits)
 
-Vassil Vassilev (80)
-Axel Naumann (29)
-Simeon Ehrig (9)
-Pratyush Das (7)
-Jonas Hahnfeld (7)
-Javier Lopez-Gomez (1)
-Enrico Guiraud (1)
-David (1)
-Bertrand Bellenot (1)
+<!---Find contributor list for this release
+git log --pretty=format:"%an"  v0.9...master | sort | uniq -c | sort -rn |\
+  sed -E 's,^ *([0-9]+) (.*)$,\2 \(\1\),'
+--->