Search Path State Tracking Cleanup

[brodieG]

A bit overwhelming to see the version attached to every single "base" package. Would be better to omit and then actually include on "package:base":

< .REF$state                             > .NEW$state                           
@@ 2,15 @@                               @@ 2,15 @@                             
~ An object of class "unitizerGlobalSta  ~ An object of class "unitizerGlobalSta
~ te"                                    ~ te"                                  
  Slot "search.path":                      Slot "search.path":                  
   [1] ".GlobalEnv"                         [1] ".GlobalEnv"                    
<  [2] "package:ggplot2 (v1.0.1)"        >  [2] "package:ggplot2 (v2.2.0)"      
<  [3] "package:alike (v1.0.0)"          >  [3] "package:alike (v1.1.0)"        
<  [4] "package:unitizer (v1.0.11)"      >  [4] "package:unitizer (v1.3.0.9000)"
<  [5] "package:stats (v3.2.2)"          >  [5] "package:stats (v3.3.2)"        
<  [6] "package:graphics (v3.2.2)"       >  [6] "package:graphics (v3.3.2)"     
<  [7] "package:grDevices (v3.2.2)"      >  [7] "package:grDevices (v3.3.2)"    
<  [8] "package:utils (v3.2.2)"          >  [8] "package:utils (v3.3.2)"        
<  [9] "package:datasets (v3.2.2)"       >  [9] "package:datasets (v3.3.2)"     
< [10] "package:methods (v3.2.2)"        > [10] "package:methods (v3.3.2)"      
  [11] "Autoloads"                         [11] "Autoloads"                     
< [12] "package:base (v3.2.2)"           > [12] "package:base (v)"