pmd: fix #991 AvoidSynchronizedAtMethodLevel for static methods
pmd: fix #1118 ClassCastException in pmd.lang.ecmascript.ast.ASTElementGet
pmd: fix #1111 False positive: Useless parentheses
pmd: fix #1104 IdempotentOperation false positive
pmd: fix #1084 NPE at UselessStringValueOfRule.java:36
pmd: fix #1092 Wrong Attribute "excludemarker" in Ant Task Documentation
pmd: fixed #1107 PMD 5.0.4 couldn't parse call of parent outer java class method from inner class
pmd: fix #1099 UseArraysAsList false positives
pmd: fix #1102 False positive: shift operator parenthesis
pmd: fix #1091 file extension for fortran seems to be wrong in cpdgui tools