Merge pull request #13 from finworks/master

https://github.com/glassdb/glass/issues/12
improve error message when FileDirectory>>createDirectory: fails ...  implement DateTime>>asDateAndTime ... remove extension methods for obsolete (and deleted in 3.2) ExecutableBlock
fix sentButNotImplemented:
  - use proper method in DateTime>>asDateAndTime
  - implement ExecBlock>>forkAndWait
spell initialize correctly: ObjectLogEntry class>>initialize
eliminate use of some of the methods deprecated in 3.x ... fix bugs in Behavior>>methodsReferingToLiteral:, Behavior>>_basicRemoveSelector:environmentId:, and Behavior>>moveMethod:toCategory:. replace refs to obolete class ExecutableBlock with ExecBlock
move String>>findSelector to CharacterCollection
GsProcess>>isValid needed for tODE support (for now) ... newlines everywhere else
replace most uses of `System myUserProfile symbolList` with `GsSession currentSession symbolList`, since `GsSession currentSession symbolList` provides access to session-specific symbol list ... which when done should be used ...
ClassOrganizer needs to use `GsSession currentSession symbolList` as well
fix for GemStone bug43796 (adjust tests to compensate for base 3.2 changes) ... add 3.2 specific package Squeak.v32
correctly add the 3.2 specific package to the baseline
Fix Bug43853 - SmallDouble printString no longer prints with $+ in exponent (no ANSI compliant) ... adjust Number>>_printAsDateAndTimeANSISecondsOn:
full lineup for pre-3.2 release testing
ClassOrganizer needs to use  as well ... but only for tODE and only for 3.2
the package Utf8Encoding.230 is used for Gemstone3.0
move 3.0.1 up in lineup while I work out test failures
- SymbolList>>dictionariesAndSymbolsOf: needs to be implemented in 3.0.1...
- Add Core300 package to take care of 3.0.1 and 3.1/3.2 compatibility
fix GemStone 3.2 Bug44039: Seaside tests failing in UTF8EncodingTest
Core300 was not quite correctly configured...
Have to take a different take to get rid of references to SymbolList>>DictionariesAndSymbolsOf: for 3.0