standalone executables.

Removed `libsbml-dev` requirement. Also `moosegui` is now `moose`.

[ skip ci ]

can handle environment variables cleanly.

Doxygen_1.8.9 is added which should be used to generate doxygen files,Rdesigneur folder is creater under "user" folder and corrected index.rst file is updated, deleted "html" folder,Rdesigneur markdown file with correct date,"snippet " and "tutorial"folder is created with relevant files to generate html files

6a6bcc1 Python module can also use VERSION file generated by CMAKE. Copy to build directory for not-in-source builds. BhallaLab/moose#200.
7805364 Failsafe mechanism in VERSION reading script.

git-subtree-dir: moose-core
git-subtree-split: 6a6bcc15556a58e08c24203599c3c84837eb65bd

9eeca0c Fixed a typo in setup.py file. Due to which installation was failing without any warning.

git-subtree-dir: moose-core
git-subtree-split: 9eeca0ca8135fbf3c8fe7dd65ce408681b1e4605

14cf2df Fixed the setup.py file. Use absolute path for script to determine absolute path of VERSION file.

git-subtree-dir: moose-core
git-subtree-split: 14cf2df3a65456c6b4ce67b2d34110fd3400c982

343cb02 Fixes to  VERSION issue BhallaLab/moose#200.
835bf9a Added a version file.

git-subtree-dir: moose-core
git-subtree-split: 343cb02705b0874ad0035eea648019420475f7ed