Added file to install.

INSTALL.md

+# Building and installing moose
+
+## Download the latest source code of moose from github or sourceforge.
+
+    $ git clone https://github.com/BhallaLab/moose
+    $ cd moose
+
+## Install dependencies
+
+For moose-core:
+
+- gsl-1.16 or higher.
+- libhdf5 
+- libsbml (optional)
+
+    Make sure that `libsml` is installed with `zlib` and `lxml` support.
+    If you are using buildtools, then use the following to install libsbml.
+
+        - wget http://sourceforge.net/projects/sbml/files/libsbml/5.9.0/stable/libSBML-5.9.0-core-src.tar.gz
+        - tar -xzvf libSBML-5.9.0-core-src.tar.gz 
+        - cd libsbml-5.9.0 
+        - ./configure --prefix=/usr --with-zlib --with-bzip2 --with-libxml 
+        - make 
+        - ctest --output-on-failure # optional
+        - sudo make install 
+
+For python module of MOOSE, following additional packages are required:
+
+- Development package of python e.g. libpython-dev 
+- python-numpy 
+
+For python-gui, we need some more addtional packages
+    
+- matplotlib
+- setuptools  (cmake uses it to install moose python extension and moogli)
+- suds 
+- Python bindings for Qt4 or higher
+- Python OpenGL
+- Python bindings for Qt's OpenGL module
+
+On Ubuntu-120.4 or higher, these can be installed with:
+    
+    sudo apt-get install python-matplotlib python-qt4 python-qt4-gl 
+
+## Use `cmake` to build moose:
+
+    $ mkdir _build
+    $ cd _build 
+    $ cmake -DBUILD_MOOGLI=OFF -DWITH_DOC=OFF ..
+    $ make 
+    $ ctest --output-on-failure
+
+This will build moose and its python extentions, `ctest` will run few tests to
+check if build process was successful.
+
+If you also want MOOGLI then pass `-DBUILD_MOOGLI=ON`.  Also see the section
+__Building and installing moogli__ for more details about its dependencies.
+
+To install MOOSE into non-standard directory, pass additional argument
+`-DCMAKE_INSTALL_PREFIX=path/to/install/dir` to cmake.
+
+After that installation is pretty easy.
+
+## Install
+
+    $ sudo make install
+
+# Building and installing moogli 
+
+MOOGLI is subproject of moogli for visualizing models. Details can be found
+[here](http://moose.ncbs.res.in/moogli).
+
+MOOGLI dependencies are huge! It uses `OpenSceneGraph` which has its own
+dependencies. In nutshell, depending on your distribution, you would need
+following packages to be installed.
+
+- Development package of libopenscenegraph 
+- [libQGLViewer-2.3.15-py](https://gforge.inria.fr/frs/?group_id=773). Install
+instructions [here](http://www.libqglviewer.com//installUnix.html#linux)
+
+- [PyQGLViewer0.10](https://gforge.inria.fr/frs/?group_id=773) (first install
+libQGLViewer-2.3.15-py) and untar contents.
+
+    $ cd / PyQGLViewer0.10
+    $ python setup.py build # to compile
+    $ python setup.py install # to install on your system
+    $ python setup.py bdist # to create a binary distribution
+
+On Ubuntu, following packages should suffice:
+
+    $ sudo apt-get install python-qt4-dev python-qt4-gl libopenscenegraph-dev python-sip-dev
+    libqt4-dev 
+
+
+### Travis
+
+We use `Travis-CI` to build MOOSE after every commit. You can see `.travis.yml`
+file in our repository. It has all instructions to build MOOSE on `Ubuntu-12.04
+64bit` server.