Changed a package name to singular form.

Change-Id: I92fd485bc391a7d2058ee51fee9f55c10a0435d2
diff --git a/full/src/main/java/de/ids_mannheim/korap/constants/GroupMemberStatus.java b/full/src/main/java/de/ids_mannheim/korap/constant/GroupMemberStatus.java
similarity index 100%
rename from full/src/main/java/de/ids_mannheim/korap/constants/GroupMemberStatus.java
rename to full/src/main/java/de/ids_mannheim/korap/constant/GroupMemberStatus.java
diff --git a/full/src/main/java/de/ids_mannheim/korap/constants/PrivilegeType.java b/full/src/main/java/de/ids_mannheim/korap/constant/PrivilegeType.java
similarity index 100%
rename from full/src/main/java/de/ids_mannheim/korap/constants/PrivilegeType.java
rename to full/src/main/java/de/ids_mannheim/korap/constant/PrivilegeType.java
diff --git a/full/src/main/java/de/ids_mannheim/korap/constants/UserGroupStatus.java b/full/src/main/java/de/ids_mannheim/korap/constant/UserGroupStatus.java
similarity index 100%
rename from full/src/main/java/de/ids_mannheim/korap/constants/UserGroupStatus.java
rename to full/src/main/java/de/ids_mannheim/korap/constant/UserGroupStatus.java
diff --git a/full/src/main/java/de/ids_mannheim/korap/constants/VirtualCorpusAccessStatus.java b/full/src/main/java/de/ids_mannheim/korap/constant/VirtualCorpusAccessStatus.java
similarity index 100%
rename from full/src/main/java/de/ids_mannheim/korap/constants/VirtualCorpusAccessStatus.java
rename to full/src/main/java/de/ids_mannheim/korap/constant/VirtualCorpusAccessStatus.java
diff --git a/full/src/main/java/de/ids_mannheim/korap/constants/VirtualCorpusType.java b/full/src/main/java/de/ids_mannheim/korap/constant/VirtualCorpusType.java
similarity index 100%
rename from full/src/main/java/de/ids_mannheim/korap/constants/VirtualCorpusType.java
rename to full/src/main/java/de/ids_mannheim/korap/constant/VirtualCorpusType.java