Added contributing terms.
Added method for obtaining all names of specific caches from manager.

Conflicts:
	ChangeLog.txt
Added "clearAllCaches()" method to ICacheManager
Added StringUtils.randomAlphanumeric(...)
Fixed: StringUtils.randomAlphanumeric should be static.
Fixed issue #94
Revert "Fixed issue #94"

This reverts commit 42942ef2d59c20401376e125e084cc41fa07e2b6.
Fix issue #94 - Superseding size property of VariablesMap if size variable is present in map.
Adapt code to guidelines, check target for VariablesMap, unnecessary check for string removed, change new Integer(...) to Integer.valueOf(...)
Test size variable in VariablesMap
Minor indentation bugfixing
Added optional dialect prefix in element name to ElementNameProcessorMatcher
Updated changelog.
Forbidden the inclusion of request parameter variables ('param.*') in preprocessing expressions.
Forbidden usage of request parameters in th:utext attributes.
New utility methods for #strings
New utility methods for #strings
New utility methods for #strings
Fixed changelog.
Avoid escaping / in javascript except for </