fix grammatical errors with contracted it (is|has)

docs/changelog/7.x.x.txt

@@ -43,6 +43,7 @@
  - fixed: WebGUI::User now actually checks whether the friends group exists
    (Martin Kamerbeek / Oqapi)
  - fixed #9039: Synopsis not output as a meta field
+ - fixed #9132: usage error in Hover Help
 
 7.6.3
  - improved performance of file uploads

lib/WebGUI/i18n/English/Asset.pm

@@ -103,8 +103,8 @@ our $I18N = {
 	},
 
 	'purge trash after help' => {
-		message => q|How long should an asset stay in the trash before it's considered old enough to purge? Note that when it gets purged all it's revisions and descendants will be purged as well.|,
-		lastUpdated => 1167187074,
+		message => q|How long should an asset stay in the trash before it's considered old enough to purge? Note that when it gets purged all its revisions and descendants will be purged as well.|,
+		lastUpdated => 1227289347,
 		context => q|the hover help for the purge trash after field|
 	},
 

lib/WebGUI/i18n/English/Asset_ProjectManager.pm

@@ -213,8 +213,8 @@ our $I18N = {
 		},
 
 	 'project delete warning' => {
-		message => q|Are you sure you wish to delete this project and all of it's associated tasks?|,
-		lastUpdated => 0
+		message => q|Are you sure you wish to delete this project and all of its associated tasks?|,
+		lastUpdated => 1227289374
 		},
 
 	 'project start task label' => {
@@ -381,8 +381,8 @@ our $I18N = {
 		},
 
 	 'task samePredecessor error' => {
-		message => q|Task cannot be it's own predecessor|,
-		lastUpdated => 0
+		message => q|Task cannot be its own predecessor|,
+		lastUpdated => 1227289406
 		},
 
 	 'task noPredecessor error' => {