* Update plugins/codemirror-editor from branch 'master'
to b33196a3da70e75ad00b5ac787620b29d20fed65
- Remove a few buggy CodeMirror parameters
In particular, line numbers seem to be inexplicably broken in CodeMirror
when enabled in this plugin.
Also sets the height of the .CodeMirror to 'auto'.
Bug: Issue 8114
Change-Id: Ib7cd1f5d74418d6fa0e2a6b16b06ccd77090e06c