charset: if we changed fenc from '' to enc, set nomodified

If the buffer had no fileencoding, and we changed fenc to match the Vim-wide
encoding, we haven't actually changed the file.  However, we have set
modified on the buffer by virtue of assigning fenc.  In this case, set
nomodified since we didn't actually change anything.

This affects new buffers created during the VimEnter autocmd.

Add example for fillexceeding max_line_indicator (#218)

Sorry, I missed this in the docs when adding the new option value

Merge pull request #149 from cxw42/issue-143

Bump versions (#143)

Replace Python core with pure-Vimscript core ("vimcore") (#119)

* Added support for Vimscript core

- Added "vim_core" mode.
- Use the Vimscript core as the default if it is installed and the user
  has not specified a different core.
- Also, for robustness, accept core modes case-insensitively.
- Added VimScript core to documentation

* Copied in editorconfig-core-vimscript

Per @xuhdev in editorconfig/editorconfig#383 (comment)

From cxw42/editorconfig-core-vimscript@4495efd

Removed caching code, which is not yet used, per @xuhdev in
#119 (comment)

* Remove support for all cores but vimscript

- Remove the Python core from this plugin
- Remove all plugin code related to modes other than vim_core
- Update the documentation and README accordingly

Note on tests: All tests now pass with `bundle _1.15.4_ exec rake`.
Thanks to
#119 (comment)
for the suggestion on how to make this work.

* Add commands to enable/disable plugin

:EditorConfigEnable, :EditorConfigDisable

* Moved plugin tests from tests/ to tests/plugin/

- This makes room for adding core tests.
- Also, renamed and updated plugin_tests submodule

* Added core_tests submodule and scripts

Scripts are modified from cxw42/editorconfig-core-vimscript@5d85d10

Windows-specific files have CRLF line endings; other files have LF
line endings.

* Core tests in Travis; added Appveyor

- Added the core tests to the existing Travis configuration

- Added Appveyor configuration to permit testing on Windows.
  The configuration is modified from
  cxw42/editorconfig-core-vimscript@5d85d10

- Updated the README to include both badges.  For now, they point to
  cxw42/editorconfig-vim; that will need to be updated when this branch
  is merged.

* Updated license and documentation

Also, fixed typo in Appveyor configuration.

Bump version number to 0.3.3

Update version to 0.3.2

Update editorconfig python core subree.

Merge branch 'master' of git://github.com/editorconfig/editorconfig-core-py

Conflicts:
	plugin/editorconfig-core-py/tests

Bump version number to 0.3

Bump version number to 0.2.4

Version 0.2.3