Added disableEditing option

Useful when custom buttons, allows using the toolbar only.
Merge pull request #213 from cdolek/disable-editing

Added disableEditing option
Updates test and dist files to reflect new disableEditing option
Adds disableEditing tests
fix https://github.com/daviferreira/medium-editor/commit/8c610b7bca9ff1c997862d346861a7418ed5ea1b#commitcomment-6156158
Merge pull request #216 from OmniaGM/fix-paste-target

fix the checking of data-disable-return attr in bindPaste
Implements elementsContainer, solves #214
1.8.5
Updates brfs dependency
Fixes README formatting
[bower] Only include the minified script file
Merge pull request #217 from jackp/master

[bower] Only include the minified script file
Adds grunt-minify, creates non-minified and minified versions of CSS files.
Adds default theme to bower.json
Removes unused imports from themes scss files
1.8.6
Renames demo files to standard
Removes empty style tag
Removes jsbeautifier
Removes fallback-colors from csslint