Merge from development repository.

Merge from development repository.
See commit log bellow for more details.

    commit d3f7ff74377f55c106ca28a43c936ef4d3bcb5e2
    Author: mvitez <mvitez@cisco.com>
    Date:   Mon Mar 25 10:15:36 2013 +0100

        improve some code

    commit a0bec74e277e7afcc0f6867ba2d7527d4e25db60
    Author: mvitez <mvitez@cisco.com>
    Date:   Mon Mar 25 09:26:59 2013 +0100

        added typedef and augment resolving, added tests

    commit 32fff33187321463bb27b5c11b63a71d8dbc104e
    Merge: 562dbeb e6b3057
    Author: lsedlak <lsedlak@cisco.com>
    Date:   Fri Mar 22 15:27:59 2013 +0100

        Merge branch 'binding-api'

    commit e6b30574b2598c289ea90be6588151dc7cb7b0fa
    Author: lsedlak <lsedlak@cisco.com>
    Date:   Fri Mar 22 15:16:12 2013 +0100

        Added Implementation of getPathStatement into Identityref.java;

    commit ef70678b2127fd56d062d99a20a02de401262b29
    Author: lsedlak <lsedlak@cisco.com>
    Date:   Fri Mar 22 15:14:28 2013 +0100

        Added RevisionAwareXPath into interface definition;

    commit 78cb3c64716f7cf2788dfaf61906a07481bcd9df
    Author: mvitez <mvitez@cisco.com>
    Date:   Fri Mar 22 13:40:05 2013 +0100

        added implementation of SchemaContext

    commit 45769c7721eb9832cd43c04a020f1ca7f52172ef
    Author: lsedlak <lsedlak@cisco.com>
    Date:   Fri Mar 22 13:55:26 2013 +0100

        Changed parameter in generateTypes from Module to SchemaContext;
        Implemented changes in generatedTypes in BindingGeneratorImpl.java;
        Implemented changes in GeneratedTypesTest.java;

    commit 562dbebbbbfec341c98885ad80b87f3d8d05c3f7
    Author: mvitez <mvitez@cisco.com>
    Date:   Fri Mar 22 13:40:05 2013 +0100

        added implementation of SchemaContext

    commit c4ea91257946fa1f3cd44a148af7a44e254b661f
    Author: lsedlak <lsedlak@cisco.com>
    Date:   Fri Mar 22 11:09:50 2013 +0100

        Added definition: getExtensions into SchemaContext.java;

    commit 8b239e3fb4a322baa36867d4ce41f2c142a8ef76
    Author: mvitez <mvitez@cisco.com>
    Date:   Fri Mar 22 10:46:27 2013 +0100

        fix Demo, GeneratedTypesTest

    commit 6564270ea304905ccb91718066c7aa65b5430ecb
    Author: mvitez <mvitez@cisco.com>
    Date:   Fri Mar 22 10:33:26 2013 +0100

        rename packages

    commit f3326c65f7de3ce77137b0c972aff32aa5d6f6c6
    Author: mvitez <mvitez@cisco.com>
    Date:   Thu Mar 21 17:45:24 2013 +0100

        renamed YangModelParserImpl-> YangModelParserListenerImpl

    commit 26fa647a676f9c466a010536e9d972486adbb904
    Author: Anton Tkacik <ttkacik@cisco.com>
    Date:   Thu Mar 21 15:49:55 2013 +0100

        Added SAL Binding SPI

    commit e60fb750ef193d8456cb1196b4d13f12f44ad276
    Author: lsedlak <lsedlak@cisco.com>
    Date:   Thu Mar 21 17:27:05 2013 +0100

        Added yang-model-parser-api module into pom definition;

    commit c7023e3f2ae7defeadba319c40011ed4f90bfb4f
    Author: Anton Tkacik <ttkacik@cisco.com>
    Date:   Thu Mar 21 11:22:50 2013 +0100

        Renamed Controller architecture to OpenDayLightController SAL

    commit 985d3e66977876be83db6cba92753ef3ade3edf2
    Merge: 9c9c027 39c8c01
    Author: mvitez <mvitez@cisco.com>
    Date:   Thu Mar 21 15:31:53 2013 +0100

        more progress on yang java model

    commit 9c9c0271a4b7b35177164e94e1677dabecd88ca8
    Author: mvitez <mvitez@cisco.com>
    Date:   Thu Mar 21 13:58:59 2013 +0100

        more progress on yang java model

    commit 5609186d6b22a89f8d0568962bb8d0657818cee4
    Merge: c26cf1d 5adfb70
    Author: mvitez <mvitez@cisco.com>
    Date:   Wed Mar 20 18:14:34 2013 +0100

        getExtensionSchemaNodes changed to getUnknownSchemaNodes;
        Whole package org.opendaylight.controller.model.parser.builder
        refactored accordingly;

    commit 820716ed377f4a7878a1f6373095053eb4ababd0
    Author: mvitez <mvitez@cisco.com>
    Date:   Thu Mar 21 10:04:44 2013 +0100

        added equals, hashCode

    commit c26cf1d917811ab0d5473342d253314f62d6e0a1
    Author: mvitez <mvitez@cisco.com>
    Date:   Wed Mar 20 18:13:56 2013 +0100

        more progress on yang java model

    commit 32e3b9dbef20ab6d8e40d9eded3c452a7f23fdc2
    Author: mvitez <mvitez@cisco.com>
    Date:   Wed Mar 20 15:44:10 2013 +0100

        Changed getLengthConstraint to getLengthConstraints and
        changed return value from LengthConstraint to Set of LengthConstraints;
        Updated BinaryType implementation accordingly;

    commit e8419305c2b7b3197734c8d89d77be25f2d78440
    Author: mvitez <mvitez@cisco.com>
    Date:   Wed Mar 20 15:44:10 2013 +0100

        more progress on yang java model

    commit 6b0283f178366831306456d59431b5747f6c038b
    Author: mvitez <mvitez@cisco.com>
    Date:   Wed Mar 20 12:08:31 2013 +0100

        Added method definitions for RevisionAwareXPath interface;

    commit 463884e9e9e21ff03a3b89b590d0b08d9dd2d9b7
    Author: mvitez <mvitez@cisco.com>
    Date:   Wed Mar 20 12:08:31 2013 +0100

        rework augment parsing

    commit b2fe0c91d7cf184252e2516ad15cdd50e01130a7
    Author: mvitez <mvitez@cisco.com>
    Date:   Tue Mar 19 18:18:28 2013 +0100

        fix test

    commit cd388c2f7fd0460ca068270035ab0acdaa9e5e79
    Author: mvitez <mvitez@cisco.com>
    Date:   Tue Mar 19 18:16:33 2013 +0100

        more progress on yang java model

    commit 638c43548ca83c739131118a404c7b1d454055db
    Merge: 2b0fb2c 36f2f95
    Author: mvitez <mvitez@cisco.com>
    Date:   Tue Mar 19 15:21:27 2013 +0100

        GeneratedType changed to Type in return value of
        generateTypes method;
        Implemented composite key resolving through GeneratedTOBuilder;
        Added test cases for composite key generation;
        Added list-composite-key.yang file for testing purposes;

Change-Id: I9145a87945cc4638ff454f268eb37dd1bf8b3142
Signed-off-by: Tony Tkacik <ttkacik@cisco.com>