Retry loading resource if it starts with a slash

Resource names starting with a slash indicate that people
are confused about how Liquibase loads included files, and
that's ok - they shouldn't have to think about it. In case
files are written with a slash, this patch retries the
load without the leading slash.
[CORE-1343] Fix relative path and catch UnknownChangelogFormatException
added support for generateChangelog on DB2iSeries
Use logging rather than 'println'.

Use logging rather than System.out.println in JdbcDatabaseSnapshot
to allow applications to control output.
Fix typo

'as requested' instead of 'as request'
Fix typo

'as requested' instead of 'as request'
Log auto-increment select statement for debugging
CORE-1423 NPE in ForeignKeyComparator
CORE-1423 NPE in ForeignKeyComparator
remove unnecessary @Override annotations
provide support for spring classpath*: prefix
Trying to get vagrant to install databases including oracle with puppet
Ignore downloaded zip files
support mysql remarks in tage <createTable> <column> <renameColumn> <addColumn> and fix addColumn method ambiguous error in CreateDatabaseChangeLogTableGeneratorInformix.java
Re-established console support with graceful failure.
Added 'dbms' to createProcedure refactoring.
CORE-548 GenerateChangeLog generates invalid XML/SQL for mysql tables with autoincrement and compound PKs

Manually merged portions of pull request https://github.com/liquibase/liquibase/pull/167
Improved .gitignore for eclipse, updated intellij iml config
Merge pull request #162 from ArloL/patch-2

Fix typo
Merge pull request #161 from ArloL/patch-1

Fix typo