Made primary load method synchronized. Without this, there is nothing to prevent an application from invoking any of the three load methods while another thread is in one already, clobbering the in-use XML Document.
Made primary load method synchronized.
Without this, there is nothing to prevent an application from invoking any of the three load methods while another thread is in one already, clobbering the in-use XML Document.

git-svn-id: 5afc437a751a4ff2ced778146f5faadda0b504ab@4255 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

chototsu/MikuMikuStudio,chototsu/MikuMikuStudio,chototsu/MikuMikuStudio,chototsu/MikuMikuStudio