updated studyDate picker style and hid hanging protocol buttons

Packages/lesiontracker/components/studyDateList/studyDateList.styl

@@ -1,3 +1,8 @@
+#selectStudyDate
+  color: black
+  background-color: #666
+  border-color: #666
+
 .studyDateList
   margin: 0 auto 15px
   text-align: left
@@ -6,7 +11,7 @@
 
   label
     font-weight: normal
-    color: white
+    color: #666
     padding-top: 5px
     padding-left: 5px
 
@@ -14,3 +19,4 @@
     display: none
     color: white
     text-align: center
+