rmarkdown 1.8

BUG FIXES

• render_site() does not work with _site.yml that does not have the output setting (#1189).

• The variables input and output do not work in Shiny R Markdown documents (#1193).

• ioslides_presentation fails to embed images (#1197).

• With Pandoc 2.x, github_document() generates the wrong filename extension .gfm-ascii_identifiers instead of .md, and line height of code blocks in the HTML preview is too big (#1200).

rmarkdown 1.7

• Fixed an issue with df_print: paged where row names where not printed and
  added support for rownames.print option to control when they print.

• Add smart option for word_document() format.

• Save render intermediates when generating beamer presentations (fixes #1106).

• Fixed issues when specifying NULL/null/empty parameter values (#729 and #762).

• Better error message when unable to prerender a document. (#1125)

• shiny::renderText() does not work in Markdown section headings (#133).

• The value argument of pandoc_variable_arg() can be missing now (#287).

• Background colors and images are supported for ioslides presentations (#687).

• HTML widgets in an Rmd document cannot be rendered if another Rmd document is
  rendered via rmarkdown::render() in this document (#993).

• Try harder to clean up temporary files created during render() (#820).

• Wrong environment for evaluating R code chunks in Shiny R Markdown docs
  (#1162, #1124).

• Do not call bibtex to create the bibliography when there are no citations in
  the document and the output format is pdf_document() with citation_package = 'natbib' (#1113).

• render() will stop if the output format is PDF but there are any errors
  during building the index or bibliography (#1166).

• beamer_presentation() doesn't work when citation_package != 'none' (#1161).

• File-based inputs don't work in parameterized documents (#919).

• rmarkdown is compatible with Pandoc 2.0 now (#1120).

• render() with intermediates_dir fails with R plots (#500).

• Added two new output formats latex_document() and latex_fragment() (#626).

• Relative paths of images in HTML output should not be resolved to absolute
  paths (#808).

• render_site() does not support multiple output formats for a single Rmd (#793).

• Unicode characters may be scrambled when downloading the Rmd source file using
  the download button generated by html_document(code_download = TRUE) (#722).

• Upgraded highlight.js from v1.1 to v9.12.0 (#988, #907).

• The argument keep_md = TRUE actually preserves the Markdown output file from
  knitr::knit() now (as documented). Previously, it generates a new Markdown
  file by concatenating the YAML metadata (title, author, date) with the body of
  the original Markdown output file (#450).

• For md_document(), when variant == 'markdown' and perserve_yaml = TRUE,
  the Pandoc argument --standalone should not be used (#656).

v0.1.2

bump version to 0.1.2