No code changes.

- Added PJLink programming notes as openlp/documentation/PJlink_Notes.odt and PJlink_Notes.pdf
- Update .bzrignore for eric IDE multiple versions

--------------------------------
lp:~alisonken1/openlp/pjlink2-j (revision 2765)
[SUCCESS] https://ci.openlp.io/job/Branch-01-Pull/2186/
[SUCCESS] https://ci.openlp.io/job/Branch-02-Functional-Tests/2089/
[SUCCESS] https://ci.openlp.io/job/Branch-03-Interface-Tests/1976/
[SUCCESS] https://ci.openlp.io/job/Branch-04a-Code_Analysis/...

bzr-revno: 2766

.bzrignore

@@ -1,11 +1,9 @@
 *.pyc
 *.*~
 \#*\#
-*.eric4project
-*.eric5project
+*eric[1-9]project
 *.ropeproject
 *.e4*
-.eric4project
 .komodotools
 *.komodoproject
 list
@@ -17,7 +15,6 @@ dist
 OpenLP.egg-info
 build
 resources/innosetup/Output
-_eric4project
 .pylint.d
 *.qm
 openlp/core/resources.py.old