Bump com.mchange:c3p0 from 0.10.0-pre5 to 0.10.0-pre7 (closes #119)

Bumps [com.mchange:c3p0](https://github.com/swaldman/c3p0) from 0.10.0-pre5 to 0.10.0-pre7.
- [Changelog](https://github.com/swaldman/c3p0/blob/0.10.x/CHANGELOG)
- [Commits](https://github.com/swaldman/c3p0/compare/v0.10.0-pre5...v0.10.0-pre7)

---
updated-dependencies:
- dependency-name: com.mchange:c3p0
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Change-Id: Iad7f7469c1ab22017df98a428a1a5e610c5c9177
diff --git a/pom.xml b/pom.xml
index b0df904..3c9439b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -128,7 +128,7 @@
     <dependency>
       <groupId>com.mchange</groupId>
       <artifactId>c3p0</artifactId>
-      <version>0.10.0-pre5</version>
+      <version>0.10.0-pre7</version>
     </dependency>
     
     <!-- Lucene core dependency -->