Create 4.3 branch from trunk [1777]. Refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1778 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Update 4.3 branch tag to rc1. Refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1779 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Update with trunk changes from [1777] to [1813]. Refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1814 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Update with trunk changes from [1814] to [1826]  Refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1827 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Update to 4.3.0 refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1828 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Minor doc fix. Refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1829 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1830 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Merge trunk changes [1827] to [1832] refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1833 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
pull most safe changes from master

refs #341

git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1863 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Merge trunk changes [1832] to [1867] refs #306 


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1868 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Merge trunk changes [1868] to [1869] refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1870 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Merge trunk changes [1869] to [1871] refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1872 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Update to 4.3.1 refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1874 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Merge trunk changes [1871] to [1877] refs #306 


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1878 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
add (failing) test for isexternaldataset

refs #345

git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1881 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
make link detection working for non-root level objects

refs #345

git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1882 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
adapt expected test output to extended test code

refs #345

git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1883 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Update branch with trunk changes [1886] to [1888] refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1889 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
Update branch with trunk changes [1889] to [1895] refs #306


git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1896 ff5d1e40-2be0-497f-93bd-dc18237bd3c7
changed to use int64_t rather than int. refs #349

git-svn-id: https://svn.nexusformat.org/code/branches/4.3@1898 ff5d1e40-2be0-497f-93bd-dc18237bd3c7