Added linux timestamp to custom.css (#347)

* Added linux timestamp to custom.css

* new line

.gitignore

@@ -2,3 +2,4 @@
 public/
 npm-debug.log
 /node_modules/*
+exampleSite/.hugo_build.lock

layouts/partials/headers.html

@@ -24,17 +24,17 @@
 <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
 
 <!-- CSS animations  -->
-<link href="{{ "css/animate.css" | relURL}}" rel="stylesheet">
+<link href="{{ "css/animate.css" | relURL }}" rel="stylesheet">
 
 <!-- Theme stylesheet, if possible do not edit this stylesheet -->
 {{ with .Site.Params.style }}
-  <link href="{{ "css/style" | relURL}}.{{ . }}.css" rel="stylesheet" id="theme-stylesheet">
+  <link href="{{ "css/style" | relURL }}.{{ . }}.css" rel="stylesheet" id="theme-stylesheet">
 {{ else }}
-  <link href="{{ "css/style.default.css" | relURL}}" rel="stylesheet" id="theme-stylesheet">
+  <link href="{{ "css/style.default.css" | relURL }}" rel="stylesheet" id="theme-stylesheet">
 {{ end }}
 
 <!-- Custom stylesheet - for your changes -->
-<link href="{{ "css/custom.css" | relURL}}" rel="stylesheet">
+<link href="{{ "css/custom.css" | relURL }}?{{ now.Unix }}" rel="stylesheet">
 
 <!-- Responsivity for older IE -->
 {{ `
@@ -49,8 +49,8 @@
 <link rel="apple-touch-icon" href="{{ "img/apple-touch-icon.png" | relURL }}" />
 
 <!-- owl carousel CSS -->
-<link href="{{ "css/owl.carousel.css" | relURL}}" rel="stylesheet">
-<link href="{{ "css/owl.theme.css" | relURL}}" rel="stylesheet">
+<link href="{{ "css/owl.carousel.css" | relURL }}" rel="stylesheet">
+<link href="{{ "css/owl.theme.css" | relURL }}" rel="stylesheet">
 
 <!-- RSS feed -->
 <link rel="alternate" href="{{ "/index.xml" | absURL }}" type="application/rss+xml" title="{{ .Site.Title }}">