Update keyboard.htm

Removed negative text indent that caused text to move out of cells, making it difficult to read.
add caTools and bitops dependencies for rmarkdown
ensure packrat is installed before checking status
Fix some path normalization issues with Packrat + the packages pane on
Windows
slidy_presentation: edit/preview round-tripping
add slidy presentation format to ui
allow any R Markdown output format producing HTML to be produce Shiny
Remap magrittr keyboard shortcut
Fix parentheses in shortcut check
Convert .Rproj file extension to associated UTI on open project

This fixes a bug wherein spotlight search failed within 'Open
Project'... dialogs. If the file extension is '.Rproj', we pass the
associated Uniform Type Identifier, rather than the extension itself, so
that search functions correctly.
improve detection for Packrat library changes on Windows
Multi-line autocompletion

Allow autocompletion in function calls spanning multiple
lines, e.g.

    install.packages(
        |

should trigger an autocompletion.