Increment version number to 3.1.0

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: survobj
 Title: Objects to Simulate Survival Times
-Version: 3.0.0.9000
+Version: 3.1.0
 Authors@R: person(
     "Aponte", 
     "John", 

NEWS.md

@@ -1,12 +1,12 @@
-# survobj (development version)
-
-
 # News
-# survobj 3.0.0
-Addition of recurrent event simulaion under homogeneous and non homogeneous
+## survobj 3.1.0
+Add logo
+
+## survobj 3.0.0
+Addition of recurrent event simulation under homogeneous and non homogeneous
 Poisson process
 
-# survobj 2.0.0
+## survobj 2.0.0
 Addition of new distributions and new random generators functions
 
   - Add Log-Logistic distribution
@@ -25,10 +25,10 @@ Addition of new distributions and new random generators functions
 
   - New vignette shows the generator of accelerated failure random times.
 
-# survobj 1.0
+## survobj 1.0
 Submission to CRAN
 
-# survobj 0.3
+## survobj 0.3
 Total refractory of the factories and functions.
 
 - function rsurvdf is defunct and replace by rsurvhr which is easier to use
@@ -44,9 +44,9 @@ Total refractory of the factories and functions.
 - Inclusion of tests
 
 
-# survobj 0.2
+## survobj 0.2
 - Include checks to ensure the parameter objects have single numbers
 
-# survobj 0.1
+## survobj 0.1
 
 - First version is ready to run