[Android] Add .idea/tasks.xml

Updated Jetbrains.gitignore

Delete IPythonNotebook.gitignore

Add .dir-locals.el

Read more here: https://www.gnu.org/software/emacs/manual/html_node/emacs/Directory-Variables.html

The IPython Notebook is now known as the Jupyter Notebook (see http://ipython.org/notebook.html). Jupyter ignore values are already found in the Python.gitignore.

Update of Visual Studio gitignore file.

TeX: feynMF/feynMP

add the *.VC.db to unreal engine ignore

as of visual studio 2015 update 2 this file stores the intellisense database.
this file is typically huge and shouldn't be included in a repository.

If the .gitignore file is inlcuded in another project, it may be feasible to have a reference to origin.

Reference: http://stackoverflow.com/questions/1826901/should-i-add-vcxproj-filter-files-to-source-control

Added datasource folder

Use the exact CC-0 license text

Rename 'IPython Notebook' comment to 'Jupyter Notebook'

Nanoc: Fix capitalisation + config filename

Update ExtJs.gitignore

Please refer to [the official guide](https://intellij-support.jetbrains.com/hc/en-us/articles/206544839-How-to-manage-projects-under-Version-Control-Systems).

ignore Visual Studio 6 workspace file

see e.g.
http://stackoverflow.com/a/1530193
https://msdn.microsoft.com/en-us/library/aa241721(v=vs.60).aspx

Removed LaunchSettings.json from being committed

ignore public/storage for laravel 5

Ref: https://github.com/laravel/laravel/blob/master/.gitignore#L2

Update/opencart

Extend C to ignore Visual Studio artifacts

Include shared settings, according to official docs

Added kernel module compilation results

Add .externalNativeBuild to Android gitignore