Add caching to MSCommon.script_env for builds that initialize the same MSVS/MSVC tool multiple times (in multiple environments, perhaps)
Update comments to clarify benefits of script_env memoization
added test case for the SConf.Streamer issue
Fixed SConf.Streamer to work with non-unicode input on python 2.x
adding support for detecting intel compiler suites version 13 and later by doing chained registry lookups for each installation instance
The changes to the D support evolved over the last many months packaged as a single changeset.
Added changelog for PR#127 (fix SConf tests)
Merged pull request #129: Updates to D language support
Merged in mjansson/scons-intel-support (pull request #128)

adding support for detecting intel compiler suites version 13 and later by doing chained registry lookups for each installation instance
Merged in Syeberman/scons/msvs-vcvars-caching (pull request #105)

Add caching to MSCommon.script_env
Fix Issue 2939.
add name.synctex.gz to list of side effect files and those to be cleaned
Fix Issue 2940, generating the wrong rpath flags for DMD and LDC.
Update CHANGES file
Improve support for biblatex package. Fix a case where we did not recognize that auxiliary files would be made and hence we did not clean them
Merged in rmanagan/scons/scons-fix-for-issue-2942 (pull request #132)
Merged in russel/scons (pull request #130) - D language fixes

Fix Issues 2939 and 2940
Updated author and copyright info.

Also cleaned up a couple of doc typos.
- fixed NoClean for multi-target builders
- switched argument type of fs_delete and _clean_targets to bool (was int before)