NEXUS-5944: Extract "page" utility from AR

AR has a bunch of utilities, one of the is Page,
that offers higher (read simpler) level of operations
against remote HTTP servers.
NEXUS-5944: Handle when remote is Nx repo with browsing disabled

Using Page utility to figure out what remote is.
Add IT
NEXUS-5944: Obey truststore
NEXUS-5944: No, you are wrong

These IT classes were NOT copied from SP ITs.
Not a chance. Look how method names differ!
[NX-19] Remove logs UI and associated resources/DTOs (they are replaced by new logging plugin)

Signed-off-by: Alin Dreghiciu <adreghiciu@gmail.com>
Merge remote-tracking branch 'origin/master' into NX-19-remove-log-files-ui-resources

Signed-off-by: Alin Dreghiciu <adreghiciu@gmail.com>

Conflicts:
	plugins/basic/nexus-ui-extjs3-plugin/src/main/resources/static/js/Nexus/config.js
	plugins/basic/nexus-ui-extjs3-plugin/src/main/resources/static/js/repoServer.js
	plugins/basic/nexus-ui-extjs3-plugin/src/main/resources/static/js/repoServer/RepoServer.js
	plugins/restlet1x/nexus-restlet1x-plugin/src/test/java/org/sonatype/nexus/client/model/TestMarshalUnmarchal.java
Merge remote-tracking branch 'origin/master' into NEXUS-5944-no-browsing-allowed
NEXUS-5944: Fix IT

Not using central but rather releases as central indexes
caused timeout in IT
Merge pull request #192 from sonatype/NEXUS-5944-no-browsing-allowed

NEXUS-5944: Repository is auto-blocked if "allow file browsing" is disabled on remote
Merge remote-tracking branch 'origin/master' into NX-19-remove-log-files-ui-resources
[NX-20] remove apr from main codebase
[NX-20] remove apr from UT codebase
NEXUS-6014 - make Nexus Jetty connectors respect X-Forwarded headers by default
remove examples better served by the book chapter covering reverse proxies

these examples are also a bit outdated
[NEXUS-5971] remove Managed and ExtensionPoint annotations
[NEXUS-5971] drop custom guice-nexus scanning/binding code and re-implement @RepositoryType support
[NX-27] refactor report gen into service, add download button
[NX-20] re-enable support-zip tab, add security files option
hookup service basic data types and logging
simplify service result, encode rest response w/filename and path, resolve location where zips will be stored