Change version scheme to use only two components for feature levels

Historically CMake used three version components for the feature level.
We released new features while incrementing only the third version
component.  Since commit v2.8.2~105^2~4 (New version scheme to support
branchy workflow, 2010-04-23) we used the fourth version component for
bug-fix releases and the development date:

 <major>.<minor>.<patch>[.<tweak>][-rc<n>] = Release
 <major>.<minor>.<patch>.<date>[-<id>]     = Development

This solidified use of three components for the feature level, and was
necessary to continue releasing 2.x versions because:

* Some existing projects performed floating-point comparisons of
  ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} to 2.x numbers
  so ``x`` could never be higher than 9.

* Version 2.9.<date> was used briefly in post-2.8.0 development in
  CVS prior to the transition to Git, so using it in releases may
  have caused confusion.

Now that we are moving to 3.x versions, these two restrictions go away.
Therefore we now change to use only two components for the feature
level and use the scheme:

 <major>.<minor>.<patch>[-rc<n>] = Release
 <major>.<minor>.<date>[-<id>]   = Development

1 files changed, 0 insertions, 5 deletions

diff --git a/bootstrap b/bootstrap
index 9154afb..69dcbce 100755
--- a/bootstrap
+++ b/bootstrap
@@ -53,10 +53,6 @@ cmake_version_major="`cmake_version_component MAJOR`"
 cmake_version_minor="`cmake_version_component MINOR`"
 cmake_version_patch="`cmake_version_component PATCH`"
 cmake_version="${cmake_version_major}.${cmake_version_minor}.${cmake_version_patch}"
-cmake_version_tweak="`cmake_version_component TWEAK`"
-if [ "$cmake_version_tweak" != "0" ]; then
-  cmake_version="${cmake_version}.${cmake_version_tweak}"
-fi
 cmake_version_rc="`cmake_version_component RC`"
 if [ "$cmake_version_rc" != "" ]; then
   cmake_version="${cmake_version}-rc${cmake_version_rc}"
@@ -1464,7 +1460,6 @@ fi
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_MAJOR ${cmake_version_major}"
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_MINOR ${cmake_version_minor}"
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_PATCH ${cmake_version_patch}"
-cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_TWEAK ${cmake_version_tweak}"
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION \"${cmake_version}\""
 cmake_report cmConfigure.h${_tmp} "#define CMAKE_ROOT_DIR \"${cmake_root_dir}\""
 cmake_report cmConfigure.h${_tmp} "#define CMAKE_DATA_DIR \"/bootstrap-not-insalled\""