chore(distro): Rename tomcat7 to tomcat
feat(rest): add get single process instance method

url: /process-instance/{id}

CAM-438
fix(rest): fix link generation for specific engines

when addressing a specific engine via /engine/{name}, the links
generated when starting a process instance now include
engine-specific prefix.

closes CAM-439
refactor(rest): refactor resource root paths into constants
chore(cdi/test): improve test for @ExecutionId

- add testcase which tests @ExecutionId Qualifier injection
- add ExecutionIdLiteral

related to HEMERA-3807
fix(db): remove duplicate line from MSSQL create

related to CAM-465
fix(test): remove String == in MultiInstanceTest

- replace String == with String.equals()

related to CAM-466
chore(build): add dependency to server runtimes

- make server assemblies attach the assembled server builds
- add declarative maven dependencies from test-runtimes to
  server-assemblies
- unpack assemblies
- fix arquillian and maven cargo configurtions

related to CAM-462
chore(build): rename cycle-tests -> webapp-tests

related to CAM-114
chore(build): fix tomcat server port

related to CAM-462
chore(build): add itest profiles & rename suites

- rename integrationtests to integration-tests-engine
- add profile for activating suites
- update README

related to CAM-462
Update README.md
chore(build): fix rest classes dependency in itest

related to CAM-462
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
refactor(rest-test): restructure tests to be extensible

move all black-box rest tests (ie. no explicit method verification)
to abstract classes that may be reused when writing integration tests.
Remove arquillian dependencies and setup.

Closes CAM-469, contributes to CAM-470
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
fix(test): Fix cycle tests to be self-contained

related to CAM-462
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
chore(build): add database env properties

- add ENV properties for different databases that can be injected via
  Jenkins build

related to CAM-462
Merge branch 'master' of github.com:camunda/camunda-bpm-platform