added try/catch in loop as it breaks in environments without

certain mappings
Merge pull request #311 from igal-getrailo/improve-009

added try/catch in loop as it breaks in environments without certain mappings
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Merge remote-tracking branch 'origin/4.1' into 4.1
add testcase for 2772
solved ticket https://issues.jboss.org/browse/RAILO-2772 and replaced string charset name with object charset
Merge branch '4.1' into 4.2

Conflicts:
	railo-java/railo-core/src/railo/runtime/tag/FileTag.java