diff --git a/.idea/libraries/Maven__com_google_guava_guava_18_0.xml b/.idea/libraries/Maven__com_google_guava_guava_18_0.xml
deleted file mode 100644
index 1746120a..00000000
--- a/.idea/libraries/Maven__com_google_guava_guava_18_0.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: com.google.guava:guava:18.0">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/com/google/guava/guava/18.0/guava-18.0.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/com/google/guava/guava/18.0/guava-18.0-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/com/google/guava/guava/18.0/guava-18.0-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__commons_lang_commons_lang_2_6.xml b/.idea/libraries/Maven__commons_lang_commons_lang_2_6.xml
deleted file mode 100644
index a3b5d101..00000000
--- a/.idea/libraries/Maven__commons_lang_commons_lang_2_6.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: commons-lang:commons-lang:2.6">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/commons-lang/commons-lang/2.6/commons-lang-2.6.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/commons-lang/commons-lang/2.6/commons-lang-2.6-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/commons-lang/commons-lang/2.6/commons-lang-2.6-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_aspectj_aspectjweaver_1_9_7.xml b/.idea/libraries/Maven__org_aspectj_aspectjweaver_1_9_7.xml
deleted file mode 100644
index ff596e3d..00000000
--- a/.idea/libraries/Maven__org_aspectj_aspectjweaver_1_9_7.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: org.aspectj:aspectjweaver:1.9.7">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/aspectj/aspectjweaver/1.9.7/aspectjweaver-1.9.7.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/aspectj/aspectjweaver/1.9.7/aspectjweaver-1.9.7-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/aspectj/aspectjweaver/1.9.7/aspectjweaver-1.9.7-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_checkerframework_checker_qual_3_5_0.xml b/.idea/libraries/Maven__org_checkerframework_checker_qual_3_5_0.xml
deleted file mode 100644
index b41c4fe5..00000000
--- a/.idea/libraries/Maven__org_checkerframework_checker_qual_3_5_0.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: org.checkerframework:checker-qual:3.5.0">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/checkerframework/checker-qual/3.5.0/checker-qual-3.5.0.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/checkerframework/checker-qual/3.5.0/checker-qual-3.5.0-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/checkerframework/checker-qual/3.5.0/checker-qual-3.5.0-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file