make api functions work in shiny modules; fixes daattali#90

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: timevis
 Title: Create Interactive Timeline Visualizations in R
-Version: 0.5.0.9004
+Version: 0.5.0.9005
 Authors@R: c(
     person("Dean", "Attali", email = "daattali@gmail.com",
       role = c("aut", "cre"), comment = "R interface"),

NEWS.md

@@ -2,6 +2,7 @@
 
 TODO date
 
+- **BREAKING CHANGE** API functions now work in shiny modules without having to specify the namespace. This means that if you previously explicitly used a namespace when calling API functions, you need to remove the namespace (#90)
 - Add `timezone` parameter to `timevis()` - supports showing the timeline in a different timezone than your local machine (#67)
 - Add `setCustomTime()` and `setCurrentTime()` functions (#20)
 - Fixed bug: using `setSelection()` did not trigger the Shiny selected input (#82)

R/api.R

@@ -16,6 +16,7 @@ callJS <- function() {
   # If an ID was passed, the widget already exists and we can simply call the
   # appropriate JS function
   else if (is.character(message$id)) {
+    message$id <- session$ns(message$id)
     method <- paste0("timevis:", message$method)
     session$sendCustomMessage(method, message)
     return(message$id)