plotOutput: check that height has proper format
Fix #65: tagWrite doesn't expect strings except as direct children of tags
Fix #77: tagWriteChildren error
reactiveValues(): improved check for unnamed arguments
Deprecate as.list.reactivevalues and add reactivevalues_to_list
reactivevalues_to_list: add all.names option
Rename reactivevalues_to_list to reactiveValuesToList
Merge pull request #79 from wch/better-deps

Finer grained dependencies when converting reactiveValues to list
Better CSS unit validation
Fix tests with reactiveValuesToList
Update NEWS
Re-roxgenize
Move validateCssUnit to separate function
reactivePrint should not display invisibles
Escape percent sign in documentation
reactiveText shouldn't capture print output
Documentation and examples for reactivePrint/reactiveText
Remove failure comment
Add runGitHub and runUrl functions
Add subdir argument for runGitHub and runUrl