Your comments
Tabs will be available in v1.1.
Will be fixed in v1.1.
Will be fixed in v1.1.
The default extension for Markdown will be .md instead of .markdown in v1.1 when you try to save a newly created Markdown file.
Will be fixed in v1.1.
Will be fixed in v1.1.
Customer support service by UserEcho
Thanks for sharing your use case. Currently there is no way to exclude certain files. There's a separate feedback entry for this at http://feedback.textasticapp.com/topic/107275-filter-exclude-files-to-download/