Multiple exception interception introduced.
Complex numbers literals implemented.
Documentation added.
RegExp literals implemented.
Read/write access eliminated
"time" operator implemented
PsiRegExp class added. "regexp", "split" operators implemented
Small fixes
Merge branch 'issue-re' into development

Conflicts:
	src/java/coneforest/psi/PsiSystemDictionary.java
	src/java/coneforest/psi/core/_regexp.java
	src/java/coneforest/psi/core/_split.java
"for" operator fixed for descending order and late increment typecheck. pi-viete.psi example script added
PsiUtility class introduced.
permutations-recursive.psi: final stdout flush added
Complex numbers literals eliminated
Dictionary stack now holds PsiDictionarylike objects
Some code cleanup
Java documentation added
Documentation added
"arg" operator: wrong return interval fixed
Some fixes.
"bind" operator: try block moved from cycle