import checkmate

instead of just suggesting it --thanks @dtenenba

ref #255

DESCRIPTION

@@ -6,8 +6,8 @@ Description: Encapsulates functions to streamline calls from R to the REDCap
     University.  The Application Programming Interface (API) offers an avenue
     to access and modify data programmatically, improving the capacity for
     literate and reproducible programming.
-Version: 0.10.2
-Date: 2019-09-20
+Version: 0.10.2.9001
+Date: 2019-10-04
 Authors@R: c(person("Will", "Beasley", role = c("aut", "cre"), email =
     "[email protected]", comment = c(ORCID = "0000-0002-5613-5006")),
     person("David", "Bard", role = "ctb"),
@@ -26,6 +26,7 @@ Depends:
     R(>= 3.0.0),
     stats
 Imports:
+    checkmate  (>= 1.8.4),
     dplyr (>= 0.5.0),
     httr (>= 1.3.0),
     magrittr,
@@ -35,7 +36,6 @@ Imports:
     tibble (>= 1.4.0),
     tidyr (>= 0.7.0)
 Suggests:
-    checkmate  (>= 1.8.4),
     DBI (>= 0.7.0),
     devtools (>= 1.13.0),
     kableExtra,