Update docs for 6.0.0 and export each to PDF.

Also:
- Removed mention of JBoss and Glassfish as they have not been tested with Roller 6.
- Added a note to the User Guide stating that the UI has a different look and feel but mostly works the same.
diff --git a/docs/roller-install-guide.odt b/docs/roller-install-guide.odt
index 39054c4..eb8d53d 100644
--- a/docs/roller-install-guide.odt
+++ b/docs/roller-install-guide.odt
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diff --git a/docs/roller-install-guide.pdf b/docs/roller-install-guide.pdf
new file mode 100644
index 0000000..376b33b
--- /dev/null
+++ b/docs/roller-install-guide.pdf
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diff --git a/docs/roller-template-guide.odt b/docs/roller-template-guide.odt
index 56d8158..541eb86 100644
--- a/docs/roller-template-guide.odt
+++ b/docs/roller-template-guide.odt
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diff --git a/docs/roller-template-guide.pdf b/docs/roller-template-guide.pdf
new file mode 100644
index 0000000..6ae010d
--- /dev/null
+++ b/docs/roller-template-guide.pdf
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diff --git a/docs/roller-user-guide.odt b/docs/roller-user-guide.odt
index 1bf7d45..dcb059e 100644
--- a/docs/roller-user-guide.odt
+++ b/docs/roller-user-guide.odt
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diff --git a/docs/roller-user-guide.pdf b/docs/roller-user-guide.pdf
new file mode 100644
index 0000000..eb7bba4
--- /dev/null
+++ b/docs/roller-user-guide.pdf
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