Fix bug #55001 - check for unicode text too (plus fix indents)

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488329 13f79535-47bb-0310-9956-ffa450edef68
Test file from bug #54880

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488332 13f79535-47bb-0310-9956-ffa450edef68
Unit test for bugs #54880 & #55030 - seems ok so far

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488403 13f79535-47bb-0310-9956-ffa450edef68
Bugzilla 55036 - Dec2HEx formula support

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488729 13f79535-47bb-0310-9956-ffa450edef68
Bugzilla 55037: DELTA function support

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488730 13f79535-47bb-0310-9956-ffa450edef68
Bugzilla 55041: CODE function support, also removed @Override from interfaces to stay compatible with JDK 1.5

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488733 13f79535-47bb-0310-9956-ffa450edef68
Bugzilla 55043 and 55042: initial support for Complex and Quotient functions

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488734 13f79535-47bb-0310-9956-ffa450edef68
added missing tests for Bug 55042: patch for missing function COMPLEX

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488808 13f79535-47bb-0310-9956-ffa450edef68
added missing tests for Bug 55042: patch for missing function COMPLEX

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488809 13f79535-47bb-0310-9956-ffa450edef68
missing tests for Bug 55041 - CODE formula support

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488810 13f79535-47bb-0310-9956-ffa450edef68
Bug 55047: REPT formula support

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488811 13f79535-47bb-0310-9956-ffa450edef68
removed @Override to keep javac on JDK 1.5 happy

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488823 13f79535-47bb-0310-9956-ffa450edef68