different 2.0.x API OSGi exports

[Davide Giannella <dg...@adobe.com>]

Good afternoon team,

was looking into the exports (package-info) we currently have in trunk
and we have a mix of 2.0 and 2.0.0. IMO is wrong. Shall we pick one and
fix accordingly? WDYT? If so I'm happy to do so.

Following a list.

$ find . -type f -iname "package-info.java" -exec grep -H
"@Version(\"2.0" {} \;
./oak-core/src/main/java/org/apache/jackrabbit/oak/api/jmx/package-info.java:@Version("2.0.0")
./oak-core/src/main/java/org/apache/jackrabbit/oak/api/package-info.java:@Version("2.0")
./oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/observation/package-info.java:@Version("2.0.0")
./oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/segment/file/package-info.java:@Version("2.0.0")
./oak-core/src/main/java/org/apache/jackrabbit/oak/query/package-info.java:@Version("2.0")
./oak-core/src/main/java/org/apache/jackrabbit/oak/spi/gc/package-info.java:@Version("2.0.0")
./oak-core/src/main/java/org/apache/jackrabbit/oak/spi/query/package-info.java:@Version("2.0.0")
./oak-core/src/main/java/org/apache/jackrabbit/oak/spi/security/user/package-info.java:@Version("2.0")
./oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/package-info.java:@Version("2.0.0")

Regards
Davide